Home / 22,512.28-31,065.40-12,440.63

Finding the Fourth Proportional to 22,512.28, 31,065.40 and 12,440.63

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Solution

The fourth proportional to 22,512.28, 31,065.40 and 12,440.63 is: 17,167.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,512.28 : 31,065.40 = 12,440.63 : x
  2. Step 2: Convert to fraction form
    22,512.28/31,065.40 = 12,440.63/x
  3. Step 3: Cross multiply
    22,512.28x = 31,065.40 × 12,440.63
  4. Step 4: Simplify right side
    22,512.28x = 386,472,960.77
  5. Step 5: Solve for x
    x = 386,472,960.77/22,512.28
  6. Step 6: Final answer
    x = 17,167.21

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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.