Home / 39,769.61-54,882.09-21,864.92

Finding the Fourth Proportional to 39,769.61, 54,882.09 and 21,864.92

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Solution

The fourth proportional to 39,769.61, 54,882.09 and 21,864.92 is: 30,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,769.61 : 54,882.09 = 21,864.92 : x
  2. Step 2: Convert to fraction form
    39,769.61/54,882.09 = 21,864.92/x
  3. Step 3: Cross multiply
    39,769.61x = 54,882.09 × 21,864.92
  4. Step 4: Simplify right side
    39,769.61x = 1,199,992,232.87
  5. Step 5: Solve for x
    x = 1,199,992,232.87/39,769.61
  6. Step 6: Final answer
    x = 30,173.60

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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.