Home / 28,034.41-38,687.78-15,459.61

Finding the Fourth Proportional to 28,034.41, 38,687.78 and 15,459.61

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Solution

The fourth proportional to 28,034.41, 38,687.78 and 15,459.61 is: 21,334.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.41 : 38,687.78 = 15,459.61 : x
  2. Step 2: Convert to fraction form
    28,034.41/38,687.78 = 15,459.61/x
  3. Step 3: Cross multiply
    28,034.41x = 38,687.78 × 15,459.61
  4. Step 4: Simplify right side
    28,034.41x = 598,097,913.27
  5. Step 5: Solve for x
    x = 598,097,913.27/28,034.41
  6. Step 6: Final answer
    x = 21,334.42

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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.