Home / 20,685.06-31,028.52-5,895

Finding the Fourth Proportional to 20,685.06, 31,028.52 and 5,895

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Solution

The fourth proportional to 20,685.06, 31,028.52 and 5,895 is: 8,842.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,685.06 : 31,028.52 = 5,895 : x
  2. Step 2: Convert to fraction form
    20,685.06/31,028.52 = 5,895/x
  3. Step 3: Cross multiply
    20,685.06x = 31,028.52 × 5,895
  4. Step 4: Simplify right side
    20,685.06x = 182,913,125.40
  5. Step 5: Solve for x
    x = 182,913,125.40/20,685.06
  6. Step 6: Final answer
    x = 8,842.77

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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.