Home / 30,087.51-41,507.70-18,144.19

Finding the Fourth Proportional to 30,087.51, 41,507.70 and 18,144.19

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Solution

The fourth proportional to 30,087.51, 41,507.70 and 18,144.19 is: 25,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,087.51 : 41,507.70 = 18,144.19 : x
  2. Step 2: Convert to fraction form
    30,087.51/41,507.70 = 18,144.19/x
  3. Step 3: Cross multiply
    30,087.51x = 41,507.70 × 18,144.19
  4. Step 4: Simplify right side
    30,087.51x = 753,123,595.26
  5. Step 5: Solve for x
    x = 753,123,595.26/30,087.51
  6. Step 6: Final answer
    x = 25,031.10

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Half scale
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Double scale
Find fourth proportional to 30,088.51, 41,509.08 and 18,145.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.