Home / 31,993.13-44,147.75-20,663.12

Finding the Fourth Proportional to 31,993.13, 44,147.75 and 20,663.12

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Solution

The fourth proportional to 31,993.13, 44,147.75 and 20,663.12 is: 28,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,993.13 : 44,147.75 = 20,663.12 : x
  2. Step 2: Convert to fraction form
    31,993.13/44,147.75 = 20,663.12/x
  3. Step 3: Cross multiply
    31,993.13x = 44,147.75 × 20,663.12
  4. Step 4: Simplify right side
    31,993.13x = 912,229,931.93
  5. Step 5: Solve for x
    x = 912,229,931.93/31,993.13
  6. Step 6: Final answer
    x = 28,513.31

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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.