Home / 28,377.72-39,166.11-16,448.40

Finding the Fourth Proportional to 28,377.72, 39,166.11 and 16,448.40

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Solution

The fourth proportional to 28,377.72, 39,166.11 and 16,448.40 is: 22,701.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,377.72 : 39,166.11 = 16,448.40 : x
  2. Step 2: Convert to fraction form
    28,377.72/39,166.11 = 16,448.40/x
  3. Step 3: Cross multiply
    28,377.72x = 39,166.11 × 16,448.40
  4. Step 4: Simplify right side
    28,377.72x = 644,219,843.72
  5. Step 5: Solve for x
    x = 644,219,843.72/28,377.72
  6. Step 6: Final answer
    x = 22,701.61

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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.