Home / 22,457.32-30,990.36-12,385.95

Finding the Fourth Proportional to 22,457.32, 30,990.36 and 12,385.95

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Solution

The fourth proportional to 22,457.32, 30,990.36 and 12,385.95 is: 17,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,457.32 : 30,990.36 = 12,385.95 : x
  2. Step 2: Convert to fraction form
    22,457.32/30,990.36 = 12,385.95/x
  3. Step 3: Cross multiply
    22,457.32x = 30,990.36 × 12,385.95
  4. Step 4: Simplify right side
    22,457.32x = 383,845,049.44
  5. Step 5: Solve for x
    x = 383,845,049.44/22,457.32
  6. Step 6: Final answer
    x = 17,092.20

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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.