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Finding the Fourth Proportional to 37,671.68, 51,987.12 and 20,904.68

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Solution

The fourth proportional to 37,671.68, 51,987.12 and 20,904.68 is: 28,848.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,671.68 : 51,987.12 = 20,904.68 : x
  2. Step 2: Convert to fraction form
    37,671.68/51,987.12 = 20,904.68/x
  3. Step 3: Cross multiply
    37,671.68x = 51,987.12 × 20,904.68
  4. Step 4: Simplify right side
    37,671.68x = 1,086,774,107.72
  5. Step 5: Solve for x
    x = 1,086,774,107.72/37,671.68
  6. Step 6: Final answer
    x = 28,848.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.