Home / 20,862.40-31,296.32-6,817.52

Finding the Fourth Proportional to 20,862.40, 31,296.32 and 6,817.52

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Solution

The fourth proportional to 20,862.40, 31,296.32 and 6,817.52 is: 10,227.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862.40 : 31,296.32 = 6,817.52 : x
  2. Step 2: Convert to fraction form
    20,862.40/31,296.32 = 6,817.52/x
  3. Step 3: Cross multiply
    20,862.40x = 31,296.32 × 6,817.52
  4. Step 4: Simplify right side
    20,862.40x = 213,363,287.53
  5. Step 5: Solve for x
    x = 213,363,287.53/20,862.40
  6. Step 6: Final answer
    x = 10,227.17

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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.