Home / 21,868.20-32,836.86-17,271.72

Finding the Fourth Proportional to 21,868.20, 32,836.86 and 17,271.72

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Solution

The fourth proportional to 21,868.20, 32,836.86 and 17,271.72 is: 25,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,868.20 : 32,836.86 = 17,271.72 : x
  2. Step 2: Convert to fraction form
    21,868.20/32,836.86 = 17,271.72/x
  3. Step 3: Cross multiply
    21,868.20x = 32,836.86 × 17,271.72
  4. Step 4: Simplify right side
    21,868.20x = 567,149,051.60
  5. Step 5: Solve for x
    x = 567,149,051.60/21,868.20
  6. Step 6: Final answer
    x = 25,934.88

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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.