Home / 22,560.85-31,134.25-12,490.22

Finding the Fourth Proportional to 22,560.85, 31,134.25 and 12,490.22

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Solution

The fourth proportional to 22,560.85, 31,134.25 and 12,490.22 is: 17,236.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,560.85 : 31,134.25 = 12,490.22 : x
  2. Step 2: Convert to fraction form
    22,560.85/31,134.25 = 12,490.22/x
  3. Step 3: Cross multiply
    22,560.85x = 31,134.25 × 12,490.22
  4. Step 4: Simplify right side
    22,560.85x = 388,873,600.81
  5. Step 5: Solve for x
    x = 388,873,600.81/22,560.85
  6. Step 6: Final answer
    x = 17,236.66

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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.