Home / 21,437.62-29,583.12-11,876.92

Finding the Fourth Proportional to 21,437.62, 29,583.12 and 11,876.92

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Solution

The fourth proportional to 21,437.62, 29,583.12 and 11,876.92 is: 16,389.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,437.62 : 29,583.12 = 11,876.92 : x
  2. Step 2: Convert to fraction form
    21,437.62/29,583.12 = 11,876.92/x
  3. Step 3: Cross multiply
    21,437.62x = 29,583.12 × 11,876.92
  4. Step 4: Simplify right side
    21,437.62x = 351,356,349.59
  5. Step 5: Solve for x
    x = 351,356,349.59/21,437.62
  6. Step 6: Final answer
    x = 16,389.71

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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.