Home / 39,258.56-58,860-18,470.72

Finding the Fourth Proportional to 39,258.56, 58,860 and 18,470.72

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Solution

The fourth proportional to 39,258.56, 58,860 and 18,470.72 is: 27,692.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,258.56 : 58,860 = 18,470.72 : x
  2. Step 2: Convert to fraction form
    39,258.56/58,860 = 18,470.72/x
  3. Step 3: Cross multiply
    39,258.56x = 58,860 × 18,470.72
  4. Step 4: Simplify right side
    39,258.56x = 1,087,186,579.20
  5. Step 5: Solve for x
    x = 1,087,186,579.20/39,258.56
  6. Step 6: Final answer
    x = 27,692.98

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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.