Home / 39,781.95-59,666.85-11,695.38

Finding the Fourth Proportional to 39,781.95, 59,666.85 and 11,695.38

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Solution

The fourth proportional to 39,781.95, 59,666.85 and 11,695.38 is: 17,541.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,781.95 : 59,666.85 = 11,695.38 : x
  2. Step 2: Convert to fraction form
    39,781.95/59,666.85 = 11,695.38/x
  3. Step 3: Cross multiply
    39,781.95x = 59,666.85 × 11,695.38
  4. Step 4: Simplify right side
    39,781.95x = 697,826,484.15
  5. Step 5: Solve for x
    x = 697,826,484.15/39,781.95
  6. Step 6: Final answer
    x = 17,541.28

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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.