Home / 38,673.12-53,367.12-21,906.24

Finding the Fourth Proportional to 38,673.12, 53,367.12 and 21,906.24

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Solution

The fourth proportional to 38,673.12, 53,367.12 and 21,906.24 is: 30,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,673.12 : 53,367.12 = 21,906.24 : x
  2. Step 2: Convert to fraction form
    38,673.12/53,367.12 = 21,906.24/x
  3. Step 3: Cross multiply
    38,673.12x = 53,367.12 × 21,906.24
  4. Step 4: Simplify right side
    38,673.12x = 1,169,072,938.83
  5. Step 5: Solve for x
    x = 1,169,072,938.83/38,673.12
  6. Step 6: Final answer
    x = 30,229.60

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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.