Home / 25,167.20-37,761.60-12,855.20

Finding the Fourth Proportional to 25,167.20, 37,761.60 and 12,855.20

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Solution

The fourth proportional to 25,167.20, 37,761.60 and 12,855.20 is: 19,288.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,167.20 : 37,761.60 = 12,855.20 : x
  2. Step 2: Convert to fraction form
    25,167.20/37,761.60 = 12,855.20/x
  3. Step 3: Cross multiply
    25,167.20x = 37,761.60 × 12,855.20
  4. Step 4: Simplify right side
    25,167.20x = 485,432,920.32
  5. Step 5: Solve for x
    x = 485,432,920.32/25,167.20
  6. Step 6: Final answer
    x = 19,288.32

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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.