Home / 25,712.48-38,571.55-8,178.20

Finding the Fourth Proportional to 25,712.48, 38,571.55 and 8,178.20

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Solution

The fourth proportional to 25,712.48, 38,571.55 and 8,178.20 is: 12,268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,712.48 : 38,571.55 = 8,178.20 : x
  2. Step 2: Convert to fraction form
    25,712.48/38,571.55 = 8,178.20/x
  3. Step 3: Cross multiply
    25,712.48x = 38,571.55 × 8,178.20
  4. Step 4: Simplify right side
    25,712.48x = 315,445,926.19
  5. Step 5: Solve for x
    x = 315,445,926.19/25,712.48
  6. Step 6: Final answer
    x = 12,268.21

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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.