Home / 31,468.31-47,186.23-9,278.80

Finding the Fourth Proportional to 31,468.31, 47,186.23 and 9,278.80

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Solution

The fourth proportional to 31,468.31, 47,186.23 and 9,278.80 is: 13,913.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,468.31 : 47,186.23 = 9,278.80 : x
  2. Step 2: Convert to fraction form
    31,468.31/47,186.23 = 9,278.80/x
  3. Step 3: Cross multiply
    31,468.31x = 47,186.23 × 9,278.80
  4. Step 4: Simplify right side
    31,468.31x = 437,831,771.73
  5. Step 5: Solve for x
    x = 437,831,771.73/31,468.31
  6. Step 6: Final answer
    x = 13,913.42

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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.