Home / 21,425.68-32,159.28-10,340.16

Finding the Fourth Proportional to 21,425.68, 32,159.28 and 10,340.16

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Solution

The fourth proportional to 21,425.68, 32,159.28 and 10,340.16 is: 15,520.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.68 : 32,159.28 = 10,340.16 : x
  2. Step 2: Convert to fraction form
    21,425.68/32,159.28 = 10,340.16/x
  3. Step 3: Cross multiply
    21,425.68x = 32,159.28 × 10,340.16
  4. Step 4: Simplify right side
    21,425.68x = 332,532,100.68
  5. Step 5: Solve for x
    x = 332,532,100.68/21,425.68
  6. Step 6: Final answer
    x = 15,520.26

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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.