Home / 22,076.90-33,115.35-20,953.70

Finding the Fourth Proportional to 22,076.90, 33,115.35 and 20,953.70

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Solution

The fourth proportional to 22,076.90, 33,115.35 and 20,953.70 is: 31,430.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,076.90 : 33,115.35 = 20,953.70 : x
  2. Step 2: Convert to fraction form
    22,076.90/33,115.35 = 20,953.70/x
  3. Step 3: Cross multiply
    22,076.90x = 33,115.35 × 20,953.70
  4. Step 4: Simplify right side
    22,076.90x = 693,889,109.30
  5. Step 5: Solve for x
    x = 693,889,109.30/22,076.90
  6. Step 6: Final answer
    x = 31,430.55

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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.