Home / 28,034.64-38,687.58-15,459.39

Finding the Fourth Proportional to 28,034.64, 38,687.58 and 15,459.39

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Solution

The fourth proportional to 28,034.64, 38,687.58 and 15,459.39 is: 21,333.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.64 : 38,687.58 = 15,459.39 : x
  2. Step 2: Convert to fraction form
    28,034.64/38,687.58 = 15,459.39/x
  3. Step 3: Cross multiply
    28,034.64x = 38,687.58 × 15,459.39
  4. Step 4: Simplify right side
    28,034.64x = 598,086,387.38
  5. Step 5: Solve for x
    x = 598,086,387.38/28,034.64
  6. Step 6: Final answer
    x = 21,333.84

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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.