Home / 42,007.09-63,012.40-19,538.85

Finding the Fourth Proportional to 42,007.09, 63,012.40 and 19,538.85

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Solution

The fourth proportional to 42,007.09, 63,012.40 and 19,538.85 is: 29,309.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,007.09 : 63,012.40 = 19,538.85 : x
  2. Step 2: Convert to fraction form
    42,007.09/63,012.40 = 19,538.85/x
  3. Step 3: Cross multiply
    42,007.09x = 63,012.40 × 19,538.85
  4. Step 4: Simplify right side
    42,007.09x = 1,231,189,831.74
  5. Step 5: Solve for x
    x = 1,231,189,831.74/42,007.09
  6. Step 6: Final answer
    x = 29,309.10

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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.