Home / 38,190.99-57,286.38-21,543.47

Finding the Fourth Proportional to 38,190.99, 57,286.38 and 21,543.47

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Solution

The fourth proportional to 38,190.99, 57,286.38 and 21,543.47 is: 32,315.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,190.99 : 57,286.38 = 21,543.47 : x
  2. Step 2: Convert to fraction form
    38,190.99/57,286.38 = 21,543.47/x
  3. Step 3: Cross multiply
    38,190.99x = 57,286.38 × 21,543.47
  4. Step 4: Simplify right side
    38,190.99x = 1,234,147,203.29
  5. Step 5: Solve for x
    x = 1,234,147,203.29/38,190.99
  6. Step 6: Final answer
    x = 32,315.14

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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.