Home / 25,112.40-37,617.48-20,155.20

Finding the Fourth Proportional to 25,112.40, 37,617.48 and 20,155.20

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Solution

The fourth proportional to 25,112.40, 37,617.48 and 20,155.20 is: 30,191.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,112.40 : 37,617.48 = 20,155.20 : x
  2. Step 2: Convert to fraction form
    25,112.40/37,617.48 = 20,155.20/x
  3. Step 3: Cross multiply
    25,112.40x = 37,617.48 × 20,155.20
  4. Step 4: Simplify right side
    25,112.40x = 758,187,832.90
  5. Step 5: Solve for x
    x = 758,187,832.90/25,112.40
  6. Step 6: Final answer
    x = 30,191.77

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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.