Home / 28,134.12-38,788.56-17,504.76

Finding the Fourth Proportional to 28,134.12, 38,788.56 and 17,504.76

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Solution

The fourth proportional to 28,134.12, 38,788.56 and 17,504.76 is: 24,133.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134.12 : 38,788.56 = 17,504.76 : x
  2. Step 2: Convert to fraction form
    28,134.12/38,788.56 = 17,504.76/x
  3. Step 3: Cross multiply
    28,134.12x = 38,788.56 × 17,504.76
  4. Step 4: Simplify right side
    28,134.12x = 678,984,433.55
  5. Step 5: Solve for x
    x = 678,984,433.55/28,134.12
  6. Step 6: Final answer
    x = 24,133.84

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Double scale
Find fourth proportional to 28,135.12, 38,789.94 and 17,505.76
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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.