Home / 38,670.80-53,360.26-21,673.69

Finding the Fourth Proportional to 38,670.80, 53,360.26 and 21,673.69

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Solution

The fourth proportional to 38,670.80, 53,360.26 and 21,673.69 is: 29,906.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,670.80 : 53,360.26 = 21,673.69 : x
  2. Step 2: Convert to fraction form
    38,670.80/53,360.26 = 21,673.69/x
  3. Step 3: Cross multiply
    38,670.80x = 53,360.26 × 21,673.69
  4. Step 4: Simplify right side
    38,670.80x = 1,156,513,545.97
  5. Step 5: Solve for x
    x = 1,156,513,545.97/38,670.80
  6. Step 6: Final answer
    x = 29,906.64

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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.