Home / 28,377.05-39,160.32-16,447.31

Finding the Fourth Proportional to 28,377.05, 39,160.32 and 16,447.31

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Solution

The fourth proportional to 28,377.05, 39,160.32 and 16,447.31 is: 22,697.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,377.05 : 39,160.32 = 16,447.31 : x
  2. Step 2: Convert to fraction form
    28,377.05/39,160.32 = 16,447.31/x
  3. Step 3: Cross multiply
    28,377.05x = 39,160.32 × 16,447.31
  4. Step 4: Simplify right side
    28,377.05x = 644,081,726.94
  5. Step 5: Solve for x
    x = 644,081,726.94/28,377.05
  6. Step 6: Final answer
    x = 22,697.28

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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.