Home / 28,892.56-39,868.80-16,314.88

Finding the Fourth Proportional to 28,892.56, 39,868.80 and 16,314.88

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Solution

The fourth proportional to 28,892.56, 39,868.80 and 16,314.88 is: 22,512.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892.56 : 39,868.80 = 16,314.88 : x
  2. Step 2: Convert to fraction form
    28,892.56/39,868.80 = 16,314.88/x
  3. Step 3: Cross multiply
    28,892.56x = 39,868.80 × 16,314.88
  4. Step 4: Simplify right side
    28,892.56x = 650,454,687.74
  5. Step 5: Solve for x
    x = 650,454,687.74/28,892.56
  6. Step 6: Final answer
    x = 22,512.88

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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.