Home / 39,147.12-58,705.60-14,179.76

Finding the Fourth Proportional to 39,147.12, 58,705.60 and 14,179.76

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Solution

The fourth proportional to 39,147.12, 58,705.60 and 14,179.76 is: 21,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,147.12 : 58,705.60 = 14,179.76 : x
  2. Step 2: Convert to fraction form
    39,147.12/58,705.60 = 14,179.76/x
  3. Step 3: Cross multiply
    39,147.12x = 58,705.60 × 14,179.76
  4. Step 4: Simplify right side
    39,147.12x = 832,431,318.66
  5. Step 5: Solve for x
    x = 832,431,318.66/39,147.12
  6. Step 6: Final answer
    x = 21,264.18

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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.