Home / 31,399.78-47,094.48-10,340.11

Finding the Fourth Proportional to 31,399.78, 47,094.48 and 10,340.11

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Solution

The fourth proportional to 31,399.78, 47,094.48 and 10,340.11 is: 15,508.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.78 : 47,094.48 = 10,340.11 : x
  2. Step 2: Convert to fraction form
    31,399.78/47,094.48 = 10,340.11/x
  3. Step 3: Cross multiply
    31,399.78x = 47,094.48 × 10,340.11
  4. Step 4: Simplify right side
    31,399.78x = 486,962,103.59
  5. Step 5: Solve for x
    x = 486,962,103.59/31,399.78
  6. Step 6: Final answer
    x = 15,508.46

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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.