Home / 19,830.18-29,729.52-9,827.91

Finding the Fourth Proportional to 19,830.18, 29,729.52 and 9,827.91

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Solution

The fourth proportional to 19,830.18, 29,729.52 and 9,827.91 is: 14,734.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.18 : 29,729.52 = 9,827.91 : x
  2. Step 2: Convert to fraction form
    19,830.18/29,729.52 = 9,827.91/x
  3. Step 3: Cross multiply
    19,830.18x = 29,729.52 × 9,827.91
  4. Step 4: Simplify right side
    19,830.18x = 292,179,046.90
  5. Step 5: Solve for x
    x = 292,179,046.90/19,830.18
  6. Step 6: Final answer
    x = 14,734.06

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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.