Home / 21,425.76-32,159.39-10,340.23

Finding the Fourth Proportional to 21,425.76, 32,159.39 and 10,340.23

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Solution

The fourth proportional to 21,425.76, 32,159.39 and 10,340.23 is: 15,520.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.76 : 32,159.39 = 10,340.23 : x
  2. Step 2: Convert to fraction form
    21,425.76/32,159.39 = 10,340.23/x
  3. Step 3: Cross multiply
    21,425.76x = 32,159.39 × 10,340.23
  4. Step 4: Simplify right side
    21,425.76x = 332,535,489.26
  5. Step 5: Solve for x
    x = 332,535,489.26/21,425.76
  6. Step 6: Final answer
    x = 15,520.36

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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.