Home / 25,839.76-38,752.55-7,115.40

Finding the Fourth Proportional to 25,839.76, 38,752.55 and 7,115.40

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Solution

The fourth proportional to 25,839.76, 38,752.55 and 7,115.40 is: 10,671.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,839.76 : 38,752.55 = 7,115.40 : x
  2. Step 2: Convert to fraction form
    25,839.76/38,752.55 = 7,115.40/x
  3. Step 3: Cross multiply
    25,839.76x = 38,752.55 × 7,115.40
  4. Step 4: Simplify right side
    25,839.76x = 275,739,894.27
  5. Step 5: Solve for x
    x = 275,739,894.27/25,839.76
  6. Step 6: Final answer
    x = 10,671.15

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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.