Home / 22,170.52-33,081.35-21,418.84

Finding the Fourth Proportional to 22,170.52, 33,081.35 and 21,418.84

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Solution

The fourth proportional to 22,170.52, 33,081.35 and 21,418.84 is: 31,959.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,170.52 : 33,081.35 = 21,418.84 : x
  2. Step 2: Convert to fraction form
    22,170.52/33,081.35 = 21,418.84/x
  3. Step 3: Cross multiply
    22,170.52x = 33,081.35 × 21,418.84
  4. Step 4: Simplify right side
    22,170.52x = 708,564,142.63
  5. Step 5: Solve for x
    x = 708,564,142.63/22,170.52
  6. Step 6: Final answer
    x = 31,959.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.