Home / 31,774.08-43,850.20-18,347.76

Finding the Fourth Proportional to 31,774.08, 43,850.20 and 18,347.76

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Solution

The fourth proportional to 31,774.08, 43,850.20 and 18,347.76 is: 25,321.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,774.08 : 43,850.20 = 18,347.76 : x
  2. Step 2: Convert to fraction form
    31,774.08/43,850.20 = 18,347.76/x
  3. Step 3: Cross multiply
    31,774.08x = 43,850.20 × 18,347.76
  4. Step 4: Simplify right side
    31,774.08x = 804,552,945.55
  5. Step 5: Solve for x
    x = 804,552,945.55/31,774.08
  6. Step 6: Final answer
    x = 25,321.05

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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.