Home / 25,613.68-35,338.76-20,219.08

Finding the Fourth Proportional to 25,613.68, 35,338.76 and 20,219.08

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Solution

The fourth proportional to 25,613.68, 35,338.76 and 20,219.08 is: 27,895.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,613.68 : 35,338.76 = 20,219.08 : x
  2. Step 2: Convert to fraction form
    25,613.68/35,338.76 = 20,219.08/x
  3. Step 3: Cross multiply
    25,613.68x = 35,338.76 × 20,219.08
  4. Step 4: Simplify right side
    25,613.68x = 714,517,215.54
  5. Step 5: Solve for x
    x = 714,517,215.54/25,613.68
  6. Step 6: Final answer
    x = 27,895.92

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Half scale
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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.