Home / 20,552.08-28,363.80-12,169.84

Finding the Fourth Proportional to 20,552.08, 28,363.80 and 12,169.84

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Solution

The fourth proportional to 20,552.08, 28,363.80 and 12,169.84 is: 16,795.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.08 : 28,363.80 = 12,169.84 : x
  2. Step 2: Convert to fraction form
    20,552.08/28,363.80 = 12,169.84/x
  3. Step 3: Cross multiply
    20,552.08x = 28,363.80 × 12,169.84
  4. Step 4: Simplify right side
    20,552.08x = 345,182,907.79
  5. Step 5: Solve for x
    x = 345,182,907.79/20,552.08
  6. Step 6: Final answer
    x = 16,795.52

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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.