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Finding the Fourth Proportional to 29,029, 40,060.34 and 15,781

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Solution

The fourth proportional to 29,029, 40,060.34 and 15,781 is: 21,777.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,029 : 40,060.34 = 15,781 : x
  2. Step 2: Convert to fraction form
    29,029/40,060.34 = 15,781/x
  3. Step 3: Cross multiply
    29,029x = 40,060.34 × 15,781
  4. Step 4: Simplify right side
    29,029x = 632,192,225.54
  5. Step 5: Solve for x
    x = 632,192,225.54/29,029
  6. Step 6: Final answer
    x = 21,777.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.