Home / 22,861.12-31,553.28-13,911.50

Finding the Fourth Proportional to 22,861.12, 31,553.28 and 13,911.50

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Solution

The fourth proportional to 22,861.12, 31,553.28 and 13,911.50 is: 19,200.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,861.12 : 31,553.28 = 13,911.50 : x
  2. Step 2: Convert to fraction form
    22,861.12/31,553.28 = 13,911.50/x
  3. Step 3: Cross multiply
    22,861.12x = 31,553.28 × 13,911.50
  4. Step 4: Simplify right side
    22,861.12x = 438,953,454.72
  5. Step 5: Solve for x
    x = 438,953,454.72/22,861.12
  6. Step 6: Final answer
    x = 19,200.87

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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.