Home / 21,149.08-31,726.50-7,299.16

Finding the Fourth Proportional to 21,149.08, 31,726.50 and 7,299.16

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Solution

The fourth proportional to 21,149.08, 31,726.50 and 7,299.16 is: 10,949.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,149.08 : 31,726.50 = 7,299.16 : x
  2. Step 2: Convert to fraction form
    21,149.08/31,726.50 = 7,299.16/x
  3. Step 3: Cross multiply
    21,149.08x = 31,726.50 × 7,299.16
  4. Step 4: Simplify right side
    21,149.08x = 231,576,799.74
  5. Step 5: Solve for x
    x = 231,576,799.74/21,149.08
  6. Step 6: Final answer
    x = 10,949.73

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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.