Home / 31,540.95-43,524.54-18,102.75

Finding the Fourth Proportional to 31,540.95, 43,524.54 and 18,102.75

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Solution

The fourth proportional to 31,540.95, 43,524.54 and 18,102.75 is: 24,980.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,540.95 : 43,524.54 = 18,102.75 : x
  2. Step 2: Convert to fraction form
    31,540.95/43,524.54 = 18,102.75/x
  3. Step 3: Cross multiply
    31,540.95x = 43,524.54 × 18,102.75
  4. Step 4: Simplify right side
    31,540.95x = 787,913,866.49
  5. Step 5: Solve for x
    x = 787,913,866.49/31,540.95
  6. Step 6: Final answer
    x = 24,980.66

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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.