Home / 21,725.20-32,530.20-17,117.20

Finding the Fourth Proportional to 21,725.20, 32,530.20 and 17,117.20

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Solution

The fourth proportional to 21,725.20, 32,530.20 and 17,117.20 is: 25,630.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,725.20 : 32,530.20 = 17,117.20 : x
  2. Step 2: Convert to fraction form
    21,725.20/32,530.20 = 17,117.20/x
  3. Step 3: Cross multiply
    21,725.20x = 32,530.20 × 17,117.20
  4. Step 4: Simplify right side
    21,725.20x = 556,825,939.44
  5. Step 5: Solve for x
    x = 556,825,939.44/21,725.20
  6. Step 6: Final answer
    x = 25,630.42

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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.