Home / 22,450.90-33,738-20,988.17

Finding the Fourth Proportional to 22,450.90, 33,738 and 20,988.17

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Solution

The fourth proportional to 22,450.90, 33,738 and 20,988.17 is: 31,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,450.90 : 33,738 = 20,988.17 : x
  2. Step 2: Convert to fraction form
    22,450.90/33,738 = 20,988.17/x
  3. Step 3: Cross multiply
    22,450.90x = 33,738 × 20,988.17
  4. Step 4: Simplify right side
    22,450.90x = 708,098,879.46
  5. Step 5: Solve for x
    x = 708,098,879.46/22,450.90
  6. Step 6: Final answer
    x = 31,539.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.