Home / 22,520.68-31,080.75-12,451.48

Finding the Fourth Proportional to 22,520.68, 31,080.75 and 12,451.48

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Solution

The fourth proportional to 22,520.68, 31,080.75 and 12,451.48 is: 17,184.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,520.68 : 31,080.75 = 12,451.48 : x
  2. Step 2: Convert to fraction form
    22,520.68/31,080.75 = 12,451.48/x
  3. Step 3: Cross multiply
    22,520.68x = 31,080.75 × 12,451.48
  4. Step 4: Simplify right side
    22,520.68x = 387,001,337.01
  5. Step 5: Solve for x
    x = 387,001,337.01/22,520.68
  6. Step 6: Final answer
    x = 17,184.27

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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.