Home / 22,520.19-33,780.27-21,150.09

Finding the Fourth Proportional to 22,520.19, 33,780.27 and 21,150.09

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Solution

The fourth proportional to 22,520.19, 33,780.27 and 21,150.09 is: 31,725.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,520.19 : 33,780.27 = 21,150.09 : x
  2. Step 2: Convert to fraction form
    22,520.19/33,780.27 = 21,150.09/x
  3. Step 3: Cross multiply
    22,520.19x = 33,780.27 × 21,150.09
  4. Step 4: Simplify right side
    22,520.19x = 714,455,750.72
  5. Step 5: Solve for x
    x = 714,455,750.72/22,520.19
  6. Step 6: Final answer
    x = 31,725.12

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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.