Home / 57,340.20-85,995.90-20,395.56

Finding the Fourth Proportional to 57,340.20, 85,995.90 and 20,395.56

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Solution

The fourth proportional to 57,340.20, 85,995.90 and 20,395.56 is: 30,588.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,340.20 : 85,995.90 = 20,395.56 : x
  2. Step 2: Convert to fraction form
    57,340.20/85,995.90 = 20,395.56/x
  3. Step 3: Cross multiply
    57,340.20x = 85,995.90 × 20,395.56
  4. Step 4: Simplify right side
    57,340.20x = 1,753,934,538.20
  5. Step 5: Solve for x
    x = 1,753,934,538.20/57,340.20
  6. Step 6: Final answer
    x = 30,588.22

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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.