Home / 30,843.93-42,561.46-17,921.19

Finding the Fourth Proportional to 30,843.93, 42,561.46 and 17,921.19

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Solution

The fourth proportional to 30,843.93, 42,561.46 and 17,921.19 is: 24,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,843.93 : 42,561.46 = 17,921.19 : x
  2. Step 2: Convert to fraction form
    30,843.93/42,561.46 = 17,921.19/x
  3. Step 3: Cross multiply
    30,843.93x = 42,561.46 × 17,921.19
  4. Step 4: Simplify right side
    30,843.93x = 762,752,011.34
  5. Step 5: Solve for x
    x = 762,752,011.34/30,843.93
  6. Step 6: Final answer
    x = 24,729.40

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Half scale
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Double scale
Find fourth proportional to 30,844.93, 42,562.84 and 17,922.19
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.