Home / 19,904.58-29,862-14,288.76

Finding the Fourth Proportional to 19,904.58, 29,862 and 14,288.76

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Solution

The fourth proportional to 19,904.58, 29,862 and 14,288.76 is: 21,436.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,904.58 : 29,862 = 14,288.76 : x
  2. Step 2: Convert to fraction form
    19,904.58/29,862 = 14,288.76/x
  3. Step 3: Cross multiply
    19,904.58x = 29,862 × 14,288.76
  4. Step 4: Simplify right side
    19,904.58x = 426,690,951.12
  5. Step 5: Solve for x
    x = 426,690,951.12/19,904.58
  6. Step 6: Final answer
    x = 21,436.82

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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.