Home / 22,513.20-31,080.48-13,562.88

Finding the Fourth Proportional to 22,513.20, 31,080.48 and 13,562.88

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Solution

The fourth proportional to 22,513.20, 31,080.48 and 13,562.88 is: 18,724.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,513.20 : 31,080.48 = 13,562.88 : x
  2. Step 2: Convert to fraction form
    22,513.20/31,080.48 = 13,562.88/x
  3. Step 3: Cross multiply
    22,513.20x = 31,080.48 × 13,562.88
  4. Step 4: Simplify right side
    22,513.20x = 421,540,820.58
  5. Step 5: Solve for x
    x = 421,540,820.58/22,513.20
  6. Step 6: Final answer
    x = 18,724.16

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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.