Home / 39,769.54-54,882.93-21,864.89

Finding the Fourth Proportional to 39,769.54, 54,882.93 and 21,864.89

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Solution

The fourth proportional to 39,769.54, 54,882.93 and 21,864.89 is: 30,174.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,769.54 : 54,882.93 = 21,864.89 : x
  2. Step 2: Convert to fraction form
    39,769.54/54,882.93 = 21,864.89/x
  3. Step 3: Cross multiply
    39,769.54x = 54,882.93 × 21,864.89
  4. Step 4: Simplify right side
    39,769.54x = 1,200,009,446.53
  5. Step 5: Solve for x
    x = 1,200,009,446.53/39,769.54
  6. Step 6: Final answer
    x = 30,174.09

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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.