Home / 29,144.78-40,218.63-16,398.23

Finding the Fourth Proportional to 29,144.78, 40,218.63 and 16,398.23

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Solution

The fourth proportional to 29,144.78, 40,218.63 and 16,398.23 is: 22,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,144.78 : 40,218.63 = 16,398.23 : x
  2. Step 2: Convert to fraction form
    29,144.78/40,218.63 = 16,398.23/x
  3. Step 3: Cross multiply
    29,144.78x = 40,218.63 × 16,398.23
  4. Step 4: Simplify right side
    29,144.78x = 659,514,345.02
  5. Step 5: Solve for x
    x = 659,514,345.02/29,144.78
  6. Step 6: Final answer
    x = 22,628.90

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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.