Home / 30,177.12-41,638.14-18,238.14

Finding the Fourth Proportional to 30,177.12, 41,638.14 and 18,238.14

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Solution

The fourth proportional to 30,177.12, 41,638.14 and 18,238.14 is: 25,164.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,177.12 : 41,638.14 = 18,238.14 : x
  2. Step 2: Convert to fraction form
    30,177.12/41,638.14 = 18,238.14/x
  3. Step 3: Cross multiply
    30,177.12x = 41,638.14 × 18,238.14
  4. Step 4: Simplify right side
    30,177.12x = 759,402,226.66
  5. Step 5: Solve for x
    x = 759,402,226.66/30,177.12
  6. Step 6: Final answer
    x = 25,164.83

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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.