Home / 39,672.47-54,747.57-21,767.46

Finding the Fourth Proportional to 39,672.47, 54,747.57 and 21,767.46

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Solution

The fourth proportional to 39,672.47, 54,747.57 and 21,767.46 is: 30,038.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,672.47 : 54,747.57 = 21,767.46 : x
  2. Step 2: Convert to fraction form
    39,672.47/54,747.57 = 21,767.46/x
  3. Step 3: Cross multiply
    39,672.47x = 54,747.57 × 21,767.46
  4. Step 4: Simplify right side
    39,672.47x = 1,191,715,540.07
  5. Step 5: Solve for x
    x = 1,191,715,540.07/39,672.47
  6. Step 6: Final answer
    x = 30,038.86

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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.