Home / 28,363.14-39,139.60-15,613.84

Finding the Fourth Proportional to 28,363.14, 39,139.60 and 15,613.84

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Solution

The fourth proportional to 28,363.14, 39,139.60 and 15,613.84 is: 21,546.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,363.14 : 39,139.60 = 15,613.84 : x
  2. Step 2: Convert to fraction form
    28,363.14/39,139.60 = 15,613.84/x
  3. Step 3: Cross multiply
    28,363.14x = 39,139.60 × 15,613.84
  4. Step 4: Simplify right side
    28,363.14x = 611,119,452.06
  5. Step 5: Solve for x
    x = 611,119,452.06/28,363.14
  6. Step 6: Final answer
    x = 21,546.26

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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.