Home / 28,789.16-39,729.15-16,850.16

Finding the Fourth Proportional to 28,789.16, 39,729.15 and 16,850.16

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Solution

The fourth proportional to 28,789.16, 39,729.15 and 16,850.16 is: 23,253.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.16 : 39,729.15 = 16,850.16 : x
  2. Step 2: Convert to fraction form
    28,789.16/39,729.15 = 16,850.16/x
  3. Step 3: Cross multiply
    28,789.16x = 39,729.15 × 16,850.16
  4. Step 4: Simplify right side
    28,789.16x = 669,442,534.16
  5. Step 5: Solve for x
    x = 669,442,534.16/28,789.16
  6. Step 6: Final answer
    x = 23,253.29

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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.