Home / 31,161.09-43,000.31-17,013.93

Finding the Fourth Proportional to 31,161.09, 43,000.31 and 17,013.93

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Solution

The fourth proportional to 31,161.09, 43,000.31 and 17,013.93 is: 23,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,161.09 : 43,000.31 = 17,013.93 : x
  2. Step 2: Convert to fraction form
    31,161.09/43,000.31 = 17,013.93/x
  3. Step 3: Cross multiply
    31,161.09x = 43,000.31 × 17,013.93
  4. Step 4: Simplify right side
    31,161.09x = 731,604,179.25
  5. Step 5: Solve for x
    x = 731,604,179.25/31,161.09
  6. Step 6: Final answer
    x = 23,478.13

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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.