Home / 20,677.85-31,016.84-5,095.47

Finding the Fourth Proportional to 20,677.85, 31,016.84 and 5,095.47

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Solution

The fourth proportional to 20,677.85, 31,016.84 and 5,095.47 is: 7,643.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.85 : 31,016.84 = 5,095.47 : x
  2. Step 2: Convert to fraction form
    20,677.85/31,016.84 = 5,095.47/x
  3. Step 3: Cross multiply
    20,677.85x = 31,016.84 × 5,095.47
  4. Step 4: Simplify right side
    20,677.85x = 158,045,377.71
  5. Step 5: Solve for x
    x = 158,045,377.71/20,677.85
  6. Step 6: Final answer
    x = 7,643.22

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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.