Home / 38,446.40-57,723.24-19,742.28

Finding the Fourth Proportional to 38,446.40, 57,723.24 and 19,742.28

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Solution

The fourth proportional to 38,446.40, 57,723.24 and 19,742.28 is: 29,640.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,446.40 : 57,723.24 = 19,742.28 : x
  2. Step 2: Convert to fraction form
    38,446.40/57,723.24 = 19,742.28/x
  3. Step 3: Cross multiply
    38,446.40x = 57,723.24 × 19,742.28
  4. Step 4: Simplify right side
    38,446.40x = 1,139,588,366.59
  5. Step 5: Solve for x
    x = 1,139,588,366.59/38,446.40
  6. Step 6: Final answer
    x = 29,640.96

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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.