Home / 15,105.60-22,748.90-13,758.88

Finding the Fourth Proportional to 15,105.60, 22,748.90 and 13,758.88

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Solution

The fourth proportional to 15,105.60, 22,748.90 and 13,758.88 is: 20,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,105.60 : 22,748.90 = 13,758.88 : x
  2. Step 2: Convert to fraction form
    15,105.60/22,748.90 = 13,758.88/x
  3. Step 3: Cross multiply
    15,105.60x = 22,748.90 × 13,758.88
  4. Step 4: Simplify right side
    15,105.60x = 312,999,385.23
  5. Step 5: Solve for x
    x = 312,999,385.23/15,105.60
  6. Step 6: Final answer
    x = 20,720.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.