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Finding the Fourth Proportional to 37,551.43, 51,820.80 and 20,557.21

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Solution

The fourth proportional to 37,551.43, 51,820.80 and 20,557.21 is: 28,368.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,551.43 : 51,820.80 = 20,557.21 : x
  2. Step 2: Convert to fraction form
    37,551.43/51,820.80 = 20,557.21/x
  3. Step 3: Cross multiply
    37,551.43x = 51,820.80 × 20,557.21
  4. Step 4: Simplify right side
    37,551.43x = 1,065,291,067.97
  5. Step 5: Solve for x
    x = 1,065,291,067.97/37,551.43
  6. Step 6: Final answer
    x = 28,368.85

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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.