Home / 37,716.49-52,049.62-20,721

Finding the Fourth Proportional to 37,716.49, 52,049.62 and 20,721

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Solution

The fourth proportional to 37,716.49, 52,049.62 and 20,721 is: 28,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,716.49 : 52,049.62 = 20,721 : x
  2. Step 2: Convert to fraction form
    37,716.49/52,049.62 = 20,721/x
  3. Step 3: Cross multiply
    37,716.49x = 52,049.62 × 20,721
  4. Step 4: Simplify right side
    37,716.49x = 1,078,520,176.02
  5. Step 5: Solve for x
    x = 1,078,520,176.02/37,716.49
  6. Step 6: Final answer
    x = 28,595.45

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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.