Home / 29,042.24-40,072.16-18,985.48

Finding the Fourth Proportional to 29,042.24, 40,072.16 and 18,985.48

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Solution

The fourth proportional to 29,042.24, 40,072.16 and 18,985.48 is: 26,195.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,042.24 : 40,072.16 = 18,985.48 : x
  2. Step 2: Convert to fraction form
    29,042.24/40,072.16 = 18,985.48/x
  3. Step 3: Cross multiply
    29,042.24x = 40,072.16 × 18,985.48
  4. Step 4: Simplify right side
    29,042.24x = 760,789,139.52
  5. Step 5: Solve for x
    x = 760,789,139.52/29,042.24
  6. Step 6: Final answer
    x = 26,195.96

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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.