Home / 20,748.66-28,635.54-11,551.14

Finding the Fourth Proportional to 20,748.66, 28,635.54 and 11,551.14

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Solution

The fourth proportional to 20,748.66, 28,635.54 and 11,551.14 is: 15,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.66 : 28,635.54 = 11,551.14 : x
  2. Step 2: Convert to fraction form
    20,748.66/28,635.54 = 11,551.14/x
  3. Step 3: Cross multiply
    20,748.66x = 28,635.54 × 11,551.14
  4. Step 4: Simplify right side
    20,748.66x = 330,773,131.52
  5. Step 5: Solve for x
    x = 330,773,131.52/20,748.66
  6. Step 6: Final answer
    x = 15,941.90

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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.