Home / 21,037.38-29,031.54-11,605.86

Finding the Fourth Proportional to 21,037.38, 29,031.54 and 11,605.86

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Solution

The fourth proportional to 21,037.38, 29,031.54 and 11,605.86 is: 16,016.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,037.38 : 29,031.54 = 11,605.86 : x
  2. Step 2: Convert to fraction form
    21,037.38/29,031.54 = 11,605.86/x
  3. Step 3: Cross multiply
    21,037.38x = 29,031.54 × 11,605.86
  4. Step 4: Simplify right side
    21,037.38x = 336,935,988.82
  5. Step 5: Solve for x
    x = 336,935,988.82/21,037.38
  6. Step 6: Final answer
    x = 16,016.06

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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.