Home / 28,412.38-42,630.88-15,249.38

Finding the Fourth Proportional to 28,412.38, 42,630.88 and 15,249.38

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Solution

The fourth proportional to 28,412.38, 42,630.88 and 15,249.38 is: 22,880.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,412.38 : 42,630.88 = 15,249.38 : x
  2. Step 2: Convert to fraction form
    28,412.38/42,630.88 = 15,249.38/x
  3. Step 3: Cross multiply
    28,412.38x = 42,630.88 × 15,249.38
  4. Step 4: Simplify right side
    28,412.38x = 650,094,488.85
  5. Step 5: Solve for x
    x = 650,094,488.85/28,412.38
  6. Step 6: Final answer
    x = 22,880.68

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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.