Home / 19,871.46-29,824.28-11,539.91

Finding the Fourth Proportional to 19,871.46, 29,824.28 and 11,539.91

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Solution

The fourth proportional to 19,871.46, 29,824.28 and 11,539.91 is: 17,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.46 : 29,824.28 = 11,539.91 : x
  2. Step 2: Convert to fraction form
    19,871.46/29,824.28 = 11,539.91/x
  3. Step 3: Cross multiply
    19,871.46x = 29,824.28 × 11,539.91
  4. Step 4: Simplify right side
    19,871.46x = 344,169,300.19
  5. Step 5: Solve for x
    x = 344,169,300.19/19,871.46
  6. Step 6: Final answer
    x = 17,319.78

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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.