Home / 23,117.64-31,910.25-13,560.55

Finding the Fourth Proportional to 23,117.64, 31,910.25 and 13,560.55

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Solution

The fourth proportional to 23,117.64, 31,910.25 and 13,560.55 is: 18,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,117.64 : 31,910.25 = 13,560.55 : x
  2. Step 2: Convert to fraction form
    23,117.64/31,910.25 = 13,560.55/x
  3. Step 3: Cross multiply
    23,117.64x = 31,910.25 × 13,560.55
  4. Step 4: Simplify right side
    23,117.64x = 432,720,511.71
  5. Step 5: Solve for x
    x = 432,720,511.71/23,117.64
  6. Step 6: Final answer
    x = 18,718.20

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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.