Home / 28,731.08-39,648.66-16,157

Finding the Fourth Proportional to 28,731.08, 39,648.66 and 16,157

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Solution

The fourth proportional to 28,731.08, 39,648.66 and 16,157 is: 22,296.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731.08 : 39,648.66 = 16,157 : x
  2. Step 2: Convert to fraction form
    28,731.08/39,648.66 = 16,157/x
  3. Step 3: Cross multiply
    28,731.08x = 39,648.66 × 16,157
  4. Step 4: Simplify right side
    28,731.08x = 640,603,399.62
  5. Step 5: Solve for x
    x = 640,603,399.62/28,731.08
  6. Step 6: Final answer
    x = 22,296.53

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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.