Home / 23,179.96-31,988.38-12,569.54

Finding the Fourth Proportional to 23,179.96, 31,988.38 and 12,569.54

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Solution

The fourth proportional to 23,179.96, 31,988.38 and 12,569.54 is: 17,345.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,179.96 : 31,988.38 = 12,569.54 : x
  2. Step 2: Convert to fraction form
    23,179.96/31,988.38 = 12,569.54/x
  3. Step 3: Cross multiply
    23,179.96x = 31,988.38 × 12,569.54
  4. Step 4: Simplify right side
    23,179.96x = 402,079,221.95
  5. Step 5: Solve for x
    x = 402,079,221.95/23,179.96
  6. Step 6: Final answer
    x = 17,345.98

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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.