Home / 29,127.81-43,691.58-9,138.77

Finding the Fourth Proportional to 29,127.81, 43,691.58 and 9,138.77

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Solution

The fourth proportional to 29,127.81, 43,691.58 and 9,138.77 is: 13,708.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,127.81 : 43,691.58 = 9,138.77 : x
  2. Step 2: Convert to fraction form
    29,127.81/43,691.58 = 9,138.77/x
  3. Step 3: Cross multiply
    29,127.81x = 43,691.58 × 9,138.77
  4. Step 4: Simplify right side
    29,127.81x = 399,287,082.10
  5. Step 5: Solve for x
    x = 399,287,082.10/29,127.81
  6. Step 6: Final answer
    x = 13,708.11

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1.5x scale

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.