Home / 22,500.66-31,050.97-12,428.90

Finding the Fourth Proportional to 22,500.66, 31,050.97 and 12,428.90

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Solution

The fourth proportional to 22,500.66, 31,050.97 and 12,428.90 is: 17,151.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,500.66 : 31,050.97 = 12,428.90 : x
  2. Step 2: Convert to fraction form
    22,500.66/31,050.97 = 12,428.90/x
  3. Step 3: Cross multiply
    22,500.66x = 31,050.97 × 12,428.90
  4. Step 4: Simplify right side
    22,500.66x = 385,929,401.03
  5. Step 5: Solve for x
    x = 385,929,401.03/22,500.66
  6. Step 6: Final answer
    x = 17,151.91

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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.