Home / 25,839.90-38,763.45-8,315.10

Finding the Fourth Proportional to 25,839.90, 38,763.45 and 8,315.10

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Solution

The fourth proportional to 25,839.90, 38,763.45 and 8,315.10 is: 12,473.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,839.90 : 38,763.45 = 8,315.10 : x
  2. Step 2: Convert to fraction form
    25,839.90/38,763.45 = 8,315.10/x
  3. Step 3: Cross multiply
    25,839.90x = 38,763.45 × 8,315.10
  4. Step 4: Simplify right side
    25,839.90x = 322,321,963.10
  5. Step 5: Solve for x
    x = 322,321,963.10/25,839.90
  6. Step 6: Final answer
    x = 12,473.81

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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.