Home / 25,641.20-38,461.80-21,704.60

Finding the Fourth Proportional to 25,641.20, 38,461.80 and 21,704.60

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Solution

The fourth proportional to 25,641.20, 38,461.80 and 21,704.60 is: 32,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,641.20 : 38,461.80 = 21,704.60 : x
  2. Step 2: Convert to fraction form
    25,641.20/38,461.80 = 21,704.60/x
  3. Step 3: Cross multiply
    25,641.20x = 38,461.80 × 21,704.60
  4. Step 4: Simplify right side
    25,641.20x = 834,797,984.28
  5. Step 5: Solve for x
    x = 834,797,984.28/25,641.20
  6. Step 6: Final answer
    x = 32,556.90

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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.