Home / 25,613.46-38,420.10-11,918.97

Finding the Fourth Proportional to 25,613.46, 38,420.10 and 11,918.97

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Solution

The fourth proportional to 25,613.46, 38,420.10 and 11,918.97 is: 17,878.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,613.46 : 38,420.10 = 11,918.97 : x
  2. Step 2: Convert to fraction form
    25,613.46/38,420.10 = 11,918.97/x
  3. Step 3: Cross multiply
    25,613.46x = 38,420.10 × 11,918.97
  4. Step 4: Simplify right side
    25,613.46x = 457,928,019.30
  5. Step 5: Solve for x
    x = 457,928,019.30/25,613.46
  6. Step 6: Final answer
    x = 17,878.41

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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.