Home / 38,669.24-53,365.66-21,678.96

Finding the Fourth Proportional to 38,669.24, 53,365.66 and 21,678.96

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Solution

The fourth proportional to 38,669.24, 53,365.66 and 21,678.96 is: 29,918.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,669.24 : 53,365.66 = 21,678.96 : x
  2. Step 2: Convert to fraction form
    38,669.24/53,365.66 = 21,678.96/x
  3. Step 3: Cross multiply
    38,669.24x = 53,365.66 × 21,678.96
  4. Step 4: Simplify right side
    38,669.24x = 1,156,912,154.44
  5. Step 5: Solve for x
    x = 1,156,912,154.44/38,669.24
  6. Step 6: Final answer
    x = 29,918.15

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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.