Home / 31,993.75-44,148.61-20,663.74

Finding the Fourth Proportional to 31,993.75, 44,148.61 and 20,663.74

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Solution

The fourth proportional to 31,993.75, 44,148.61 and 20,663.74 is: 28,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,993.75 : 44,148.61 = 20,663.74 : x
  2. Step 2: Convert to fraction form
    31,993.75/44,148.61 = 20,663.74/x
  3. Step 3: Cross multiply
    31,993.75x = 44,148.61 × 20,663.74
  4. Step 4: Simplify right side
    31,993.75x = 912,275,398.40
  5. Step 5: Solve for x
    x = 912,275,398.40/31,993.75
  6. Step 6: Final answer
    x = 28,514.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.