Home / 43,428.06-65,171.25-20,054.70

Finding the Fourth Proportional to 43,428.06, 65,171.25 and 20,054.70

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Solution

The fourth proportional to 43,428.06, 65,171.25 and 20,054.70 is: 30,095.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,428.06 : 65,171.25 = 20,054.70 : x
  2. Step 2: Convert to fraction form
    43,428.06/65,171.25 = 20,054.70/x
  3. Step 3: Cross multiply
    43,428.06x = 65,171.25 × 20,054.70
  4. Step 4: Simplify right side
    43,428.06x = 1,306,989,867.38
  5. Step 5: Solve for x
    x = 1,306,989,867.38/43,428.06
  6. Step 6: Final answer
    x = 30,095.52

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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.