Home / 29,042.31-40,072.22-18,985.52

Finding the Fourth Proportional to 29,042.31, 40,072.22 and 18,985.52

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Solution

The fourth proportional to 29,042.31, 40,072.22 and 18,985.52 is: 26,195.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,042.31 : 40,072.22 = 18,985.52 : x
  2. Step 2: Convert to fraction form
    29,042.31/40,072.22 = 18,985.52/x
  3. Step 3: Cross multiply
    29,042.31x = 40,072.22 × 18,985.52
  4. Step 4: Simplify right side
    29,042.31x = 760,792,010.70
  5. Step 5: Solve for x
    x = 760,792,010.70/29,042.31
  6. Step 6: Final answer
    x = 26,195.98

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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.