Home / 31,306.75-43,203.32-18,058.75

Finding the Fourth Proportional to 31,306.75, 43,203.32 and 18,058.75

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Solution

The fourth proportional to 31,306.75, 43,203.32 and 18,058.75 is: 24,921.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,306.75 : 43,203.32 = 18,058.75 : x
  2. Step 2: Convert to fraction form
    31,306.75/43,203.32 = 18,058.75/x
  3. Step 3: Cross multiply
    31,306.75x = 43,203.32 × 18,058.75
  4. Step 4: Simplify right side
    31,306.75x = 780,197,955.05
  5. Step 5: Solve for x
    x = 780,197,955.05/31,306.75
  6. Step 6: Final answer
    x = 24,921.08

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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.