Home / 20,744.38-28,627.18-11,313.01

Finding the Fourth Proportional to 20,744.38, 28,627.18 and 11,313.01

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Solution

The fourth proportional to 20,744.38, 28,627.18 and 11,313.01 is: 15,611.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.38 : 28,627.18 = 11,313.01 : x
  2. Step 2: Convert to fraction form
    20,744.38/28,627.18 = 11,313.01/x
  3. Step 3: Cross multiply
    20,744.38x = 28,627.18 × 11,313.01
  4. Step 4: Simplify right side
    20,744.38x = 323,859,573.61
  5. Step 5: Solve for x
    x = 323,859,573.61/20,744.38
  6. Step 6: Final answer
    x = 15,611.92

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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.