Home / 22,810.88-31,475.18-12,738.95

Finding the Fourth Proportional to 22,810.88, 31,475.18 and 12,738.95

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Solution

The fourth proportional to 22,810.88, 31,475.18 and 12,738.95 is: 17,577.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,810.88 : 31,475.18 = 12,738.95 : x
  2. Step 2: Convert to fraction form
    22,810.88/31,475.18 = 12,738.95/x
  3. Step 3: Cross multiply
    22,810.88x = 31,475.18 × 12,738.95
  4. Step 4: Simplify right side
    22,810.88x = 400,960,680.57
  5. Step 5: Solve for x
    x = 400,960,680.57/22,810.88
  6. Step 6: Final answer
    x = 17,577.61

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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.