Home / 28,600.21-39,468.22-15,854.05

Finding the Fourth Proportional to 28,600.21, 39,468.22 and 15,854.05

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Solution

The fourth proportional to 28,600.21, 39,468.22 and 15,854.05 is: 21,878.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.21 : 39,468.22 = 15,854.05 : x
  2. Step 2: Convert to fraction form
    28,600.21/39,468.22 = 15,854.05/x
  3. Step 3: Cross multiply
    28,600.21x = 39,468.22 × 15,854.05
  4. Step 4: Simplify right side
    28,600.21x = 625,731,133.29
  5. Step 5: Solve for x
    x = 625,731,133.29/28,600.21
  6. Step 6: Final answer
    x = 21,878.55

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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.