Home / 39,778.60-59,664.76-23,128

Finding the Fourth Proportional to 39,778.60, 59,664.76 and 23,128

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Solution

The fourth proportional to 39,778.60, 59,664.76 and 23,128 is: 34,690.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,778.60 : 59,664.76 = 23,128 : x
  2. Step 2: Convert to fraction form
    39,778.60/59,664.76 = 23,128/x
  3. Step 3: Cross multiply
    39,778.60x = 59,664.76 × 23,128
  4. Step 4: Simplify right side
    39,778.60x = 1,379,926,569.28
  5. Step 5: Solve for x
    x = 1,379,926,569.28/39,778.60
  6. Step 6: Final answer
    x = 34,690.17

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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.