Home / 22,261.53-30,710.52-12,824.61

Finding the Fourth Proportional to 22,261.53, 30,710.52 and 12,824.61

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Solution

The fourth proportional to 22,261.53, 30,710.52 and 12,824.61 is: 17,691.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261.53 : 30,710.52 = 12,824.61 : x
  2. Step 2: Convert to fraction form
    22,261.53/30,710.52 = 12,824.61/x
  3. Step 3: Cross multiply
    22,261.53x = 30,710.52 × 12,824.61
  4. Step 4: Simplify right side
    22,261.53x = 393,850,441.90
  5. Step 5: Solve for x
    x = 393,850,441.90/22,261.53
  6. Step 6: Final answer
    x = 17,691.98

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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.