Home / 22,358.70-30,886.49-21,177.72

Finding the Fourth Proportional to 22,358.70, 30,886.49 and 21,177.72

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Solution

The fourth proportional to 22,358.70, 30,886.49 and 21,177.72 is: 29,255.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,358.70 : 30,886.49 = 21,177.72 : x
  2. Step 2: Convert to fraction form
    22,358.70/30,886.49 = 21,177.72/x
  3. Step 3: Cross multiply
    22,358.70x = 30,886.49 × 21,177.72
  4. Step 4: Simplify right side
    22,358.70x = 654,105,489.95
  5. Step 5: Solve for x
    x = 654,105,489.95/22,358.70
  6. Step 6: Final answer
    x = 29,255.08

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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.