Home / 31,449.12-47,163.68-10,385.23

Finding the Fourth Proportional to 31,449.12, 47,163.68 and 10,385.23

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Solution

The fourth proportional to 31,449.12, 47,163.68 and 10,385.23 is: 15,574.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,449.12 : 47,163.68 = 10,385.23 : x
  2. Step 2: Convert to fraction form
    31,449.12/47,163.68 = 10,385.23/x
  3. Step 3: Cross multiply
    31,449.12x = 47,163.68 × 10,385.23
  4. Step 4: Simplify right side
    31,449.12x = 489,805,664.45
  5. Step 5: Solve for x
    x = 489,805,664.45/31,449.12
  6. Step 6: Final answer
    x = 15,574.54

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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.