Home / 19,990.95-29,921.33-14,723.89

Finding the Fourth Proportional to 19,990.95, 29,921.33 and 14,723.89

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Solution

The fourth proportional to 19,990.95, 29,921.33 and 14,723.89 is: 22,037.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.95 : 29,921.33 = 14,723.89 : x
  2. Step 2: Convert to fraction form
    19,990.95/29,921.33 = 14,723.89/x
  3. Step 3: Cross multiply
    19,990.95x = 29,921.33 × 14,723.89
  4. Step 4: Simplify right side
    19,990.95x = 440,558,223.15
  5. Step 5: Solve for x
    x = 440,558,223.15/19,990.95
  6. Step 6: Final answer
    x = 22,037.88

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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.