Home / 38,674.08-53,368.20-21,906

Finding the Fourth Proportional to 38,674.08, 53,368.20 and 21,906

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Solution

The fourth proportional to 38,674.08, 53,368.20 and 21,906 is: 30,229.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,674.08 : 53,368.20 = 21,906 : x
  2. Step 2: Convert to fraction form
    38,674.08/53,368.20 = 21,906/x
  3. Step 3: Cross multiply
    38,674.08x = 53,368.20 × 21,906
  4. Step 4: Simplify right side
    38,674.08x = 1,169,083,789.20
  5. Step 5: Solve for x
    x = 1,169,083,789.20/38,674.08
  6. Step 6: Final answer
    x = 30,229.13

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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.