Home / 21,148.54-31,723.62-10,049.56

Finding the Fourth Proportional to 21,148.54, 31,723.62 and 10,049.56

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Solution

The fourth proportional to 21,148.54, 31,723.62 and 10,049.56 is: 15,074.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,148.54 : 31,723.62 = 10,049.56 : x
  2. Step 2: Convert to fraction form
    21,148.54/31,723.62 = 10,049.56/x
  3. Step 3: Cross multiply
    21,148.54x = 31,723.62 × 10,049.56
  4. Step 4: Simplify right side
    21,148.54x = 318,808,422.61
  5. Step 5: Solve for x
    x = 318,808,422.61/21,148.54
  6. Step 6: Final answer
    x = 15,074.72

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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.