Home / 31,219.08-43,081.65-17,071.90

Finding the Fourth Proportional to 31,219.08, 43,081.65 and 17,071.90

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Solution

The fourth proportional to 31,219.08, 43,081.65 and 17,071.90 is: 23,558.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,219.08 : 43,081.65 = 17,071.90 : x
  2. Step 2: Convert to fraction form
    31,219.08/43,081.65 = 17,071.90/x
  3. Step 3: Cross multiply
    31,219.08x = 43,081.65 × 17,071.90
  4. Step 4: Simplify right side
    31,219.08x = 735,485,620.64
  5. Step 5: Solve for x
    x = 735,485,620.64/31,219.08
  6. Step 6: Final answer
    x = 23,558.85

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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.