Home / 31,669.66-43,703.85-18,922.15

Finding the Fourth Proportional to 31,669.66, 43,703.85 and 18,922.15

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Solution

The fourth proportional to 31,669.66, 43,703.85 and 18,922.15 is: 26,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,669.66 : 43,703.85 = 18,922.15 : x
  2. Step 2: Convert to fraction form
    31,669.66/43,703.85 = 18,922.15/x
  3. Step 3: Cross multiply
    31,669.66x = 43,703.85 × 18,922.15
  4. Step 4: Simplify right side
    31,669.66x = 826,970,805.28
  5. Step 5: Solve for x
    x = 826,970,805.28/31,669.66
  6. Step 6: Final answer
    x = 26,112.40

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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.