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Finding the Fourth Proportional to 29,930.50, 41,307.84 and 17,187.68

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Solution

The fourth proportional to 29,930.50, 41,307.84 and 17,187.68 is: 23,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,930.50 : 41,307.84 = 17,187.68 : x
  2. Step 2: Convert to fraction form
    29,930.50/41,307.84 = 17,187.68/x
  3. Step 3: Cross multiply
    29,930.50x = 41,307.84 × 17,187.68
  4. Step 4: Simplify right side
    29,930.50x = 709,985,935.41
  5. Step 5: Solve for x
    x = 709,985,935.41/29,930.50
  6. Step 6: Final answer
    x = 23,721.15

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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.