Home / 23,179.72-31,988.28-12,569.44

Finding the Fourth Proportional to 23,179.72, 31,988.28 and 12,569.44

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Solution

The fourth proportional to 23,179.72, 31,988.28 and 12,569.44 is: 17,345.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,179.72 : 31,988.28 = 12,569.44 : x
  2. Step 2: Convert to fraction form
    23,179.72/31,988.28 = 12,569.44/x
  3. Step 3: Cross multiply
    23,179.72x = 31,988.28 × 12,569.44
  4. Step 4: Simplify right side
    23,179.72x = 402,074,766.16
  5. Step 5: Solve for x
    x = 402,074,766.16/23,179.72
  6. Step 6: Final answer
    x = 17,345.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.