Home / 31,312.98-43,211.97-17,165.70

Finding the Fourth Proportional to 31,312.98, 43,211.97 and 17,165.70

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Solution

The fourth proportional to 31,312.98, 43,211.97 and 17,165.70 is: 23,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,312.98 : 43,211.97 = 17,165.70 : x
  2. Step 2: Convert to fraction form
    31,312.98/43,211.97 = 17,165.70/x
  3. Step 3: Cross multiply
    31,312.98x = 43,211.97 × 17,165.70
  4. Step 4: Simplify right side
    31,312.98x = 741,763,713.43
  5. Step 5: Solve for x
    x = 741,763,713.43/31,312.98
  6. Step 6: Final answer
    x = 23,688.70

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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.