Home / 31,211.86-43,072.35-17,064.70

Finding the Fourth Proportional to 31,211.86, 43,072.35 and 17,064.70

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Solution

The fourth proportional to 31,211.86, 43,072.35 and 17,064.70 is: 23,549.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,211.86 : 43,072.35 = 17,064.70 : x
  2. Step 2: Convert to fraction form
    31,211.86/43,072.35 = 17,064.70/x
  3. Step 3: Cross multiply
    31,211.86x = 43,072.35 × 17,064.70
  4. Step 4: Simplify right side
    31,211.86x = 735,016,731.05
  5. Step 5: Solve for x
    x = 735,016,731.05/31,211.86
  6. Step 6: Final answer
    x = 23,549.28

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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.