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Finding the Fourth Proportional to 29,935.40, 41,311.14 and 16,507.20

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Solution

The fourth proportional to 29,935.40, 41,311.14 and 16,507.20 is: 22,780.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,935.40 : 41,311.14 = 16,507.20 : x
  2. Step 2: Convert to fraction form
    29,935.40/41,311.14 = 16,507.20/x
  3. Step 3: Cross multiply
    29,935.40x = 41,311.14 × 16,507.20
  4. Step 4: Simplify right side
    29,935.40x = 681,931,250.21
  5. Step 5: Solve for x
    x = 681,931,250.21/29,935.40
  6. Step 6: Final answer
    x = 22,780.09

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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.