Home / 31,719.26-47,527.85-20,653.04

Finding the Fourth Proportional to 31,719.26, 47,527.85 and 20,653.04

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Solution

The fourth proportional to 31,719.26, 47,527.85 and 20,653.04 is: 30,946.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,719.26 : 47,527.85 = 20,653.04 : x
  2. Step 2: Convert to fraction form
    31,719.26/47,527.85 = 20,653.04/x
  3. Step 3: Cross multiply
    31,719.26x = 47,527.85 × 20,653.04
  4. Step 4: Simplify right side
    31,719.26x = 981,594,401.16
  5. Step 5: Solve for x
    x = 981,594,401.16/31,719.26
  6. Step 6: Final answer
    x = 30,946.33

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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.