Home / 25,613.20-38,419.80-25,440.40

Finding the Fourth Proportional to 25,613.20, 38,419.80 and 25,440.40

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Solution

The fourth proportional to 25,613.20, 38,419.80 and 25,440.40 is: 38,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,613.20 : 38,419.80 = 25,440.40 : x
  2. Step 2: Convert to fraction form
    25,613.20/38,419.80 = 25,440.40/x
  3. Step 3: Cross multiply
    25,613.20x = 38,419.80 × 25,440.40
  4. Step 4: Simplify right side
    25,613.20x = 977,415,079.92
  5. Step 5: Solve for x
    x = 977,415,079.92/25,613.20
  6. Step 6: Final answer
    x = 38,160.60

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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.