Home / 25,240.80-37,861.20-12,086.40

Finding the Fourth Proportional to 25,240.80, 37,861.20 and 12,086.40

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Solution

The fourth proportional to 25,240.80, 37,861.20 and 12,086.40 is: 18,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,240.80 : 37,861.20 = 12,086.40 : x
  2. Step 2: Convert to fraction form
    25,240.80/37,861.20 = 12,086.40/x
  3. Step 3: Cross multiply
    25,240.80x = 37,861.20 × 12,086.40
  4. Step 4: Simplify right side
    25,240.80x = 457,605,607.68
  5. Step 5: Solve for x
    x = 457,605,607.68/25,240.80
  6. Step 6: Final answer
    x = 18,129.60

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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.