Home / 25,840.60-38,766.30-8,312.20

Finding the Fourth Proportional to 25,840.60, 38,766.30 and 8,312.20

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Solution

The fourth proportional to 25,840.60, 38,766.30 and 8,312.20 is: 12,470.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,840.60 : 38,766.30 = 8,312.20 : x
  2. Step 2: Convert to fraction form
    25,840.60/38,766.30 = 8,312.20/x
  3. Step 3: Cross multiply
    25,840.60x = 38,766.30 × 8,312.20
  4. Step 4: Simplify right side
    25,840.60x = 322,233,238.86
  5. Step 5: Solve for x
    x = 322,233,238.86/25,840.60
  6. Step 6: Final answer
    x = 12,470.04

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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.