Home / 31,512.15-43,501.23-22,443.39

Finding the Fourth Proportional to 31,512.15, 43,501.23 and 22,443.39

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Solution

The fourth proportional to 31,512.15, 43,501.23 and 22,443.39 is: 30,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.15 : 43,501.23 = 22,443.39 : x
  2. Step 2: Convert to fraction form
    31,512.15/43,501.23 = 22,443.39/x
  3. Step 3: Cross multiply
    31,512.15x = 43,501.23 × 22,443.39
  4. Step 4: Simplify right side
    31,512.15x = 976,315,070.37
  5. Step 5: Solve for x
    x = 976,315,070.37/31,512.15
  6. Step 6: Final answer
    x = 30,982.18

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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.