Home / 19,781.64-29,677.32-5,930.64

Finding the Fourth Proportional to 19,781.64, 29,677.32 and 5,930.64

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Solution

The fourth proportional to 19,781.64, 29,677.32 and 5,930.64 is: 8,897.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781.64 : 29,677.32 = 5,930.64 : x
  2. Step 2: Convert to fraction form
    19,781.64/29,677.32 = 5,930.64/x
  3. Step 3: Cross multiply
    19,781.64x = 29,677.32 × 5,930.64
  4. Step 4: Simplify right side
    19,781.64x = 176,005,501.08
  5. Step 5: Solve for x
    x = 176,005,501.08/19,781.64
  6. Step 6: Final answer
    x = 8,897.42

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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.