Home / 19,690.47-29,502.28-11,882.88

Finding the Fourth Proportional to 19,690.47, 29,502.28 and 11,882.88

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Solution

The fourth proportional to 19,690.47, 29,502.28 and 11,882.88 is: 17,804.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.47 : 29,502.28 = 11,882.88 : x
  2. Step 2: Convert to fraction form
    19,690.47/29,502.28 = 11,882.88/x
  3. Step 3: Cross multiply
    19,690.47x = 29,502.28 × 11,882.88
  4. Step 4: Simplify right side
    19,690.47x = 350,572,052.97
  5. Step 5: Solve for x
    x = 350,572,052.97/19,690.47
  6. Step 6: Final answer
    x = 17,804.15

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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.