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Finding the Fourth Proportional to 25,571.40, 38,357.10 and 8,041.20

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Solution

The fourth proportional to 25,571.40, 38,357.10 and 8,041.20 is: 12,061.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,571.40 : 38,357.10 = 8,041.20 : x
  2. Step 2: Convert to fraction form
    25,571.40/38,357.10 = 8,041.20/x
  3. Step 3: Cross multiply
    25,571.40x = 38,357.10 × 8,041.20
  4. Step 4: Simplify right side
    25,571.40x = 308,437,112.52
  5. Step 5: Solve for x
    x = 308,437,112.52/25,571.40
  6. Step 6: Final answer
    x = 12,061.80

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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.