Home / 31,560.67-47,305.04-19,719.91

Finding the Fourth Proportional to 31,560.67, 47,305.04 and 19,719.91

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Solution

The fourth proportional to 31,560.67, 47,305.04 and 19,719.91 is: 29,557.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,560.67 : 47,305.04 = 19,719.91 : x
  2. Step 2: Convert to fraction form
    31,560.67/47,305.04 = 19,719.91/x
  3. Step 3: Cross multiply
    31,560.67x = 47,305.04 × 19,719.91
  4. Step 4: Simplify right side
    31,560.67x = 932,851,032.75
  5. Step 5: Solve for x
    x = 932,851,032.75/31,560.67
  6. Step 6: Final answer
    x = 29,557.39

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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.