Home / 39,673.40-54,747.46-21,767.96

Finding the Fourth Proportional to 39,673.40, 54,747.46 and 21,767.96

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Solution

The fourth proportional to 39,673.40, 54,747.46 and 21,767.96 is: 30,038.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,673.40 : 54,747.46 = 21,767.96 : x
  2. Step 2: Convert to fraction form
    39,673.40/54,747.46 = 21,767.96/x
  3. Step 3: Cross multiply
    39,673.40x = 54,747.46 × 21,767.96
  4. Step 4: Simplify right side
    39,673.40x = 1,191,740,519.38
  5. Step 5: Solve for x
    x = 1,191,740,519.38/39,673.40
  6. Step 6: Final answer
    x = 30,038.78

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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.