Home / 21,265.26-31,901.94-8,116.53

Finding the Fourth Proportional to 21,265.26, 31,901.94 and 8,116.53

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Solution

The fourth proportional to 21,265.26, 31,901.94 and 8,116.53 is: 12,176.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265.26 : 31,901.94 = 8,116.53 : x
  2. Step 2: Convert to fraction form
    21,265.26/31,901.94 = 8,116.53/x
  3. Step 3: Cross multiply
    21,265.26x = 31,901.94 × 8,116.53
  4. Step 4: Simplify right side
    21,265.26x = 258,933,053.07
  5. Step 5: Solve for x
    x = 258,933,053.07/21,265.26
  6. Step 6: Final answer
    x = 12,176.34

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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.