Home / 31,387.54-47,081.31-10,610.50

Finding the Fourth Proportional to 31,387.54, 47,081.31 and 10,610.50

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Solution

The fourth proportional to 31,387.54, 47,081.31 and 10,610.50 is: 15,915.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,387.54 : 47,081.31 = 10,610.50 : x
  2. Step 2: Convert to fraction form
    31,387.54/47,081.31 = 10,610.50/x
  3. Step 3: Cross multiply
    31,387.54x = 47,081.31 × 10,610.50
  4. Step 4: Simplify right side
    31,387.54x = 499,556,239.76
  5. Step 5: Solve for x
    x = 499,556,239.76/31,387.54
  6. Step 6: Final answer
    x = 15,915.75

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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.