Home / 39,781.78-59,592.74-18,404.53

Finding the Fourth Proportional to 39,781.78, 59,592.74 and 18,404.53

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Solution

The fourth proportional to 39,781.78, 59,592.74 and 18,404.53 is: 27,569.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,781.78 : 59,592.74 = 18,404.53 : x
  2. Step 2: Convert to fraction form
    39,781.78/59,592.74 = 18,404.53/x
  3. Step 3: Cross multiply
    39,781.78x = 59,592.74 × 18,404.53
  4. Step 4: Simplify right side
    39,781.78x = 1,096,776,130.11
  5. Step 5: Solve for x
    x = 1,096,776,130.11/39,781.78
  6. Step 6: Final answer
    x = 27,569.81

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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.