Home / 21,425.82-32,159.51-10,340.31

Finding the Fourth Proportional to 21,425.82, 32,159.51 and 10,340.31

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Solution

The fourth proportional to 21,425.82, 32,159.51 and 10,340.31 is: 15,520.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.82 : 32,159.51 = 10,340.31 : x
  2. Step 2: Convert to fraction form
    21,425.82/32,159.51 = 10,340.31/x
  3. Step 3: Cross multiply
    21,425.82x = 32,159.51 × 10,340.31
  4. Step 4: Simplify right side
    21,425.82x = 332,539,302.85
  5. Step 5: Solve for x
    x = 332,539,302.85/21,425.82
  6. Step 6: Final answer
    x = 15,520.49

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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.