Home / 22,254.53-30,700.86-12,817.61

Finding the Fourth Proportional to 22,254.53, 30,700.86 and 12,817.61

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Solution

The fourth proportional to 22,254.53, 30,700.86 and 12,817.61 is: 17,682.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,254.53 : 30,700.86 = 12,817.61 : x
  2. Step 2: Convert to fraction form
    22,254.53/30,700.86 = 12,817.61/x
  3. Step 3: Cross multiply
    22,254.53x = 30,700.86 × 12,817.61
  4. Step 4: Simplify right side
    22,254.53x = 393,511,650.14
  5. Step 5: Solve for x
    x = 393,511,650.14/22,254.53
  6. Step 6: Final answer
    x = 17,682.32

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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.