Home / 39,565.80-59,356.02-12,555

Finding the Fourth Proportional to 39,565.80, 59,356.02 and 12,555

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Solution

The fourth proportional to 39,565.80, 59,356.02 and 12,555 is: 18,834.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,565.80 : 59,356.02 = 12,555 : x
  2. Step 2: Convert to fraction form
    39,565.80/59,356.02 = 12,555/x
  3. Step 3: Cross multiply
    39,565.80x = 59,356.02 × 12,555
  4. Step 4: Simplify right side
    39,565.80x = 745,214,831.10
  5. Step 5: Solve for x
    x = 745,214,831.10/39,565.80
  6. Step 6: Final answer
    x = 18,834.82

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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.