Home / 28,382.20-39,164.02-16,443.88

Finding the Fourth Proportional to 28,382.20, 39,164.02 and 16,443.88

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Solution

The fourth proportional to 28,382.20, 39,164.02 and 16,443.88 is: 22,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382.20 : 39,164.02 = 16,443.88 : x
  2. Step 2: Convert to fraction form
    28,382.20/39,164.02 = 16,443.88/x
  3. Step 3: Cross multiply
    28,382.20x = 39,164.02 × 16,443.88
  4. Step 4: Simplify right side
    28,382.20x = 644,008,445.20
  5. Step 5: Solve for x
    x = 644,008,445.20/28,382.20
  6. Step 6: Final answer
    x = 22,690.58

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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.