Home / 31,759.20-47,617.20-15,127.20

Finding the Fourth Proportional to 31,759.20, 47,617.20 and 15,127.20

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Solution

The fourth proportional to 31,759.20, 47,617.20 and 15,127.20 is: 22,680.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,759.20 : 47,617.20 = 15,127.20 : x
  2. Step 2: Convert to fraction form
    31,759.20/47,617.20 = 15,127.20/x
  3. Step 3: Cross multiply
    31,759.20x = 47,617.20 × 15,127.20
  4. Step 4: Simplify right side
    31,759.20x = 720,314,907.84
  5. Step 5: Solve for x
    x = 720,314,907.84/31,759.20
  6. Step 6: Final answer
    x = 22,680.51

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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.