Home / 31,439.43-47,116.22-17,378.64

Finding the Fourth Proportional to 31,439.43, 47,116.22 and 17,378.64

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Solution

The fourth proportional to 31,439.43, 47,116.22 and 17,378.64 is: 26,044.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439.43 : 47,116.22 = 17,378.64 : x
  2. Step 2: Convert to fraction form
    31,439.43/47,116.22 = 17,378.64/x
  3. Step 3: Cross multiply
    31,439.43x = 47,116.22 × 17,378.64
  4. Step 4: Simplify right side
    31,439.43x = 818,815,738.65
  5. Step 5: Solve for x
    x = 818,815,738.65/31,439.43
  6. Step 6: Final answer
    x = 26,044.23

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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.