Home / 31,359.97-47,048.15-18,199.70

Finding the Fourth Proportional to 31,359.97, 47,048.15 and 18,199.70

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Solution

The fourth proportional to 31,359.97, 47,048.15 and 18,199.70 is: 27,304.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,359.97 : 47,048.15 = 18,199.70 : x
  2. Step 2: Convert to fraction form
    31,359.97/47,048.15 = 18,199.70/x
  3. Step 3: Cross multiply
    31,359.97x = 47,048.15 × 18,199.70
  4. Step 4: Simplify right side
    31,359.97x = 856,262,215.56
  5. Step 5: Solve for x
    x = 856,262,215.56/31,359.97
  6. Step 6: Final answer
    x = 27,304.31

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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.