Home / 21,373.20-29,505.06-15,935.87

Finding the Fourth Proportional to 21,373.20, 29,505.06 and 15,935.87

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Solution

The fourth proportional to 21,373.20, 29,505.06 and 15,935.87 is: 21,998.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,373.20 : 29,505.06 = 15,935.87 : x
  2. Step 2: Convert to fraction form
    21,373.20/29,505.06 = 15,935.87/x
  3. Step 3: Cross multiply
    21,373.20x = 29,505.06 × 15,935.87
  4. Step 4: Simplify right side
    21,373.20x = 470,188,874.26
  5. Step 5: Solve for x
    x = 470,188,874.26/21,373.20
  6. Step 6: Final answer
    x = 21,998.99

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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.