Home / 29,545.09-40,781.32-18,218.14

Finding the Fourth Proportional to 29,545.09, 40,781.32 and 18,218.14

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Solution

The fourth proportional to 29,545.09, 40,781.32 and 18,218.14 is: 25,146.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,545.09 : 40,781.32 = 18,218.14 : x
  2. Step 2: Convert to fraction form
    29,545.09/40,781.32 = 18,218.14/x
  3. Step 3: Cross multiply
    29,545.09x = 40,781.32 × 18,218.14
  4. Step 4: Simplify right side
    29,545.09x = 742,959,649.65
  5. Step 5: Solve for x
    x = 742,959,649.65/29,545.09
  6. Step 6: Final answer
    x = 25,146.64

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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.