Home / 28,230.72-38,960.16-16,296.24

Finding the Fourth Proportional to 28,230.72, 38,960.16 and 16,296.24

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Solution

The fourth proportional to 28,230.72, 38,960.16 and 16,296.24 is: 22,489.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.72 : 38,960.16 = 16,296.24 : x
  2. Step 2: Convert to fraction form
    28,230.72/38,960.16 = 16,296.24/x
  3. Step 3: Cross multiply
    28,230.72x = 38,960.16 × 16,296.24
  4. Step 4: Simplify right side
    28,230.72x = 634,904,117.80
  5. Step 5: Solve for x
    x = 634,904,117.80/28,230.72
  6. Step 6: Final answer
    x = 22,489.83

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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.