Home / 28,102.80-42,147.45-16,230.90

Finding the Fourth Proportional to 28,102.80, 42,147.45 and 16,230.90

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Solution

The fourth proportional to 28,102.80, 42,147.45 and 16,230.90 is: 24,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.80 : 42,147.45 = 16,230.90 : x
  2. Step 2: Convert to fraction form
    28,102.80/42,147.45 = 16,230.90/x
  3. Step 3: Cross multiply
    28,102.80x = 42,147.45 × 16,230.90
  4. Step 4: Simplify right side
    28,102.80x = 684,091,046.21
  5. Step 5: Solve for x
    x = 684,091,046.21/28,102.80
  6. Step 6: Final answer
    x = 24,342.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.