Home / 38,765.39-57,885.53-30,778.29

Finding the Fourth Proportional to 38,765.39, 57,885.53 and 30,778.29

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Solution

The fourth proportional to 38,765.39, 57,885.53 and 30,778.29 is: 45,958.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,765.39 : 57,885.53 = 30,778.29 : x
  2. Step 2: Convert to fraction form
    38,765.39/57,885.53 = 30,778.29/x
  3. Step 3: Cross multiply
    38,765.39x = 57,885.53 × 30,778.29
  4. Step 4: Simplify right side
    38,765.39x = 1,781,617,475.25
  5. Step 5: Solve for x
    x = 1,781,617,475.25/38,765.39
  6. Step 6: Final answer
    x = 45,958.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.