Home / 22,021.40-32,959.20-20,271.80

Finding the Fourth Proportional to 22,021.40, 32,959.20 and 20,271.80

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Solution

The fourth proportional to 22,021.40, 32,959.20 and 20,271.80 is: 30,340.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.40 : 32,959.20 = 20,271.80 : x
  2. Step 2: Convert to fraction form
    22,021.40/32,959.20 = 20,271.80/x
  3. Step 3: Cross multiply
    22,021.40x = 32,959.20 × 20,271.80
  4. Step 4: Simplify right side
    22,021.40x = 668,142,310.56
  5. Step 5: Solve for x
    x = 668,142,310.56/22,021.40
  6. Step 6: Final answer
    x = 30,340.59

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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.