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Finding the Fourth Proportional to 37,521, 51,778.98 and 20,754

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Solution

The fourth proportional to 37,521, 51,778.98 and 20,754 is: 28,640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,521 : 51,778.98 = 20,754 : x
  2. Step 2: Convert to fraction form
    37,521/51,778.98 = 20,754/x
  3. Step 3: Cross multiply
    37,521x = 51,778.98 × 20,754
  4. Step 4: Simplify right side
    37,521x = 1,074,620,950.92
  5. Step 5: Solve for x
    x = 1,074,620,950.92/37,521
  6. Step 6: Final answer
    x = 28,640.52

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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.