Home / 38,343.38-57,549.38-19,636.20

Finding the Fourth Proportional to 38,343.38, 57,549.38 and 19,636.20

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Solution

The fourth proportional to 38,343.38, 57,549.38 and 19,636.20 is: 29,471.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,343.38 : 57,549.38 = 19,636.20 : x
  2. Step 2: Convert to fraction form
    38,343.38/57,549.38 = 19,636.20/x
  3. Step 3: Cross multiply
    38,343.38x = 57,549.38 × 19,636.20
  4. Step 4: Simplify right side
    38,343.38x = 1,130,051,037.38
  5. Step 5: Solve for x
    x = 1,130,051,037.38/38,343.38
  6. Step 6: Final answer
    x = 29,471.87

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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.