Home / 21,331.24-29,437.92-11,901.64

Finding the Fourth Proportional to 21,331.24, 29,437.92 and 11,901.64

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Solution

The fourth proportional to 21,331.24, 29,437.92 and 11,901.64 is: 16,424.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.24 : 29,437.92 = 11,901.64 : x
  2. Step 2: Convert to fraction form
    21,331.24/29,437.92 = 11,901.64/x
  3. Step 3: Cross multiply
    21,331.24x = 29,437.92 × 11,901.64
  4. Step 4: Simplify right side
    21,331.24x = 350,359,526.19
  5. Step 5: Solve for x
    x = 350,359,526.19/21,331.24
  6. Step 6: Final answer
    x = 16,424.71

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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.