Home / 28,378.25-42,567.14-10,613.39

Finding the Fourth Proportional to 28,378.25, 42,567.14 and 10,613.39

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Solution

The fourth proportional to 28,378.25, 42,567.14 and 10,613.39 is: 15,919.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378.25 : 42,567.14 = 10,613.39 : x
  2. Step 2: Convert to fraction form
    28,378.25/42,567.14 = 10,613.39/x
  3. Step 3: Cross multiply
    28,378.25x = 42,567.14 × 10,613.39
  4. Step 4: Simplify right side
    28,378.25x = 451,781,392.10
  5. Step 5: Solve for x
    x = 451,781,392.10/28,378.25
  6. Step 6: Final answer
    x = 15,919.99

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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.