Home / 21,976.52-30,325.19-12,543.26

Finding the Fourth Proportional to 21,976.52, 30,325.19 and 12,543.26

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Solution

The fourth proportional to 21,976.52, 30,325.19 and 12,543.26 is: 17,308.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,976.52 : 30,325.19 = 12,543.26 : x
  2. Step 2: Convert to fraction form
    21,976.52/30,325.19 = 12,543.26/x
  3. Step 3: Cross multiply
    21,976.52x = 30,325.19 × 12,543.26
  4. Step 4: Simplify right side
    21,976.52x = 380,376,528.38
  5. Step 5: Solve for x
    x = 380,376,528.38/21,976.52
  6. Step 6: Final answer
    x = 17,308.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.