Home / 25,266.80-37,900.20-12,112.40

Finding the Fourth Proportional to 25,266.80, 37,900.20 and 12,112.40

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Solution

The fourth proportional to 25,266.80, 37,900.20 and 12,112.40 is: 18,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,266.80 : 37,900.20 = 12,112.40 : x
  2. Step 2: Convert to fraction form
    25,266.80/37,900.20 = 12,112.40/x
  3. Step 3: Cross multiply
    25,266.80x = 37,900.20 × 12,112.40
  4. Step 4: Simplify right side
    25,266.80x = 459,062,382.48
  5. Step 5: Solve for x
    x = 459,062,382.48/25,266.80
  6. Step 6: Final answer
    x = 18,168.60

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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.