Home / 22,521.50-31,079.46-12,450.20

Finding the Fourth Proportional to 22,521.50, 31,079.46 and 12,450.20

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Solution

The fourth proportional to 22,521.50, 31,079.46 and 12,450.20 is: 17,181.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,521.50 : 31,079.46 = 12,450.20 : x
  2. Step 2: Convert to fraction form
    22,521.50/31,079.46 = 12,450.20/x
  3. Step 3: Cross multiply
    22,521.50x = 31,079.46 × 12,450.20
  4. Step 4: Simplify right side
    22,521.50x = 386,945,384.18
  5. Step 5: Solve for x
    x = 386,945,384.18/22,521.50
  6. Step 6: Final answer
    x = 17,181.16

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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.