Home / 25,441.20-38,167.60-7,912.80

Finding the Fourth Proportional to 25,441.20, 38,167.60 and 7,912.80

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Solution

The fourth proportional to 25,441.20, 38,167.60 and 7,912.80 is: 11,871.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,441.20 : 38,167.60 = 7,912.80 : x
  2. Step 2: Convert to fraction form
    25,441.20/38,167.60 = 7,912.80/x
  3. Step 3: Cross multiply
    25,441.20x = 38,167.60 × 7,912.80
  4. Step 4: Simplify right side
    25,441.20x = 302,012,585.28
  5. Step 5: Solve for x
    x = 302,012,585.28/25,441.20
  6. Step 6: Final answer
    x = 11,871.00

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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.