Home / 31,775.84-47,694.76-15,147.36

Finding the Fourth Proportional to 31,775.84, 47,694.76 and 15,147.36

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Solution

The fourth proportional to 31,775.84, 47,694.76 and 15,147.36 is: 22,735.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,775.84 : 47,694.76 = 15,147.36 : x
  2. Step 2: Convert to fraction form
    31,775.84/47,694.76 = 15,147.36/x
  3. Step 3: Cross multiply
    31,775.84x = 47,694.76 × 15,147.36
  4. Step 4: Simplify right side
    31,775.84x = 722,449,699.83
  5. Step 5: Solve for x
    x = 722,449,699.83/31,775.84
  6. Step 6: Final answer
    x = 22,735.82

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1.5x scale

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.