Home / 38,480.23-57,639.33-19,703.20

Finding the Fourth Proportional to 38,480.23, 57,639.33 and 19,703.20

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Solution

The fourth proportional to 38,480.23, 57,639.33 and 19,703.20 is: 29,513.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480.23 : 57,639.33 = 19,703.20 : x
  2. Step 2: Convert to fraction form
    38,480.23/57,639.33 = 19,703.20/x
  3. Step 3: Cross multiply
    38,480.23x = 57,639.33 × 19,703.20
  4. Step 4: Simplify right side
    38,480.23x = 1,135,679,246.86
  5. Step 5: Solve for x
    x = 1,135,679,246.86/38,480.23
  6. Step 6: Final answer
    x = 29,513.32

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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.