Home / 21,424.25-32,157.15-10,338.73

Finding the Fourth Proportional to 21,424.25, 32,157.15 and 10,338.73

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Solution

The fourth proportional to 21,424.25, 32,157.15 and 10,338.73 is: 15,518.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424.25 : 32,157.15 = 10,338.73 : x
  2. Step 2: Convert to fraction form
    21,424.25/32,157.15 = 10,338.73/x
  3. Step 3: Cross multiply
    21,424.25x = 32,157.15 × 10,338.73
  4. Step 4: Simplify right side
    21,424.25x = 332,464,091.42
  5. Step 5: Solve for x
    x = 332,464,091.42/21,424.25
  6. Step 6: Final answer
    x = 15,518.12

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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.