Home / 19,421.28-29,146.80-15,027.84

Finding the Fourth Proportional to 19,421.28, 29,146.80 and 15,027.84

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Solution

The fourth proportional to 19,421.28, 29,146.80 and 15,027.84 is: 22,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.28 : 29,146.80 = 15,027.84 : x
  2. Step 2: Convert to fraction form
    19,421.28/29,146.80 = 15,027.84/x
  3. Step 3: Cross multiply
    19,421.28x = 29,146.80 × 15,027.84
  4. Step 4: Simplify right side
    19,421.28x = 438,013,446.91
  5. Step 5: Solve for x
    x = 438,013,446.91/19,421.28
  6. Step 6: Final answer
    x = 22,553.27

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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.