Home / 37,805.78-52,171.56-20,809.66

Finding the Fourth Proportional to 37,805.78, 52,171.56 and 20,809.66

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Solution

The fourth proportional to 37,805.78, 52,171.56 and 20,809.66 is: 28,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,805.78 : 52,171.56 = 20,809.66 : x
  2. Step 2: Convert to fraction form
    37,805.78/52,171.56 = 20,809.66/x
  3. Step 3: Cross multiply
    37,805.78x = 52,171.56 × 20,809.66
  4. Step 4: Simplify right side
    37,805.78x = 1,085,672,425.27
  5. Step 5: Solve for x
    x = 1,085,672,425.27/37,805.78
  6. Step 6: Final answer
    x = 28,717.10

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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.