Home / 31,447.43-47,172.51-10,388.74

Finding the Fourth Proportional to 31,447.43, 47,172.51 and 10,388.74

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Solution

The fourth proportional to 31,447.43, 47,172.51 and 10,388.74 is: 15,583.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,447.43 : 47,172.51 = 10,388.74 : x
  2. Step 2: Convert to fraction form
    31,447.43/47,172.51 = 10,388.74/x
  3. Step 3: Cross multiply
    31,447.43x = 47,172.51 × 10,388.74
  4. Step 4: Simplify right side
    31,447.43x = 490,062,941.54
  5. Step 5: Solve for x
    x = 490,062,941.54/31,447.43
  6. Step 6: Final answer
    x = 15,583.56

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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.