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Finding the Fourth Proportional to 29,597.40, 40,834.94 and 21,100.91

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Solution

The fourth proportional to 29,597.40, 40,834.94 and 21,100.91 is: 29,112.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,597.40 : 40,834.94 = 21,100.91 : x
  2. Step 2: Convert to fraction form
    29,597.40/40,834.94 = 21,100.91/x
  3. Step 3: Cross multiply
    29,597.40x = 40,834.94 × 21,100.91
  4. Step 4: Simplify right side
    29,597.40x = 861,654,084.12
  5. Step 5: Solve for x
    x = 861,654,084.12/29,597.40
  6. Step 6: Final answer
    x = 29,112.49

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1.5x scale

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.