Home / 25,930.16-38,867.55-18,512.15

Finding the Fourth Proportional to 25,930.16, 38,867.55 and 18,512.15

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Solution

The fourth proportional to 25,930.16, 38,867.55 and 18,512.15 is: 27,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,930.16 : 38,867.55 = 18,512.15 : x
  2. Step 2: Convert to fraction form
    25,930.16/38,867.55 = 18,512.15/x
  3. Step 3: Cross multiply
    25,930.16x = 38,867.55 × 18,512.15
  4. Step 4: Simplify right side
    25,930.16x = 719,521,651.97
  5. Step 5: Solve for x
    x = 719,521,651.97/25,930.16
  6. Step 6: Final answer
    x = 27,748.45

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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.