Home / 42,195.59-63,256.13-15,918.78

Finding the Fourth Proportional to 42,195.59, 63,256.13 and 15,918.78

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Solution

The fourth proportional to 42,195.59, 63,256.13 and 15,918.78 is: 23,864.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,195.59 : 63,256.13 = 15,918.78 : x
  2. Step 2: Convert to fraction form
    42,195.59/63,256.13 = 15,918.78/x
  3. Step 3: Cross multiply
    42,195.59x = 63,256.13 × 15,918.78
  4. Step 4: Simplify right side
    42,195.59x = 1,006,960,417.12
  5. Step 5: Solve for x
    x = 1,006,960,417.12/42,195.59
  6. Step 6: Final answer
    x = 23,864.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.