Home / 28,105.04-38,788.80-16,168.16

Finding the Fourth Proportional to 28,105.04, 38,788.80 and 16,168.16

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Solution

The fourth proportional to 28,105.04, 38,788.80 and 16,168.16 is: 22,314.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,105.04 : 38,788.80 = 16,168.16 : x
  2. Step 2: Convert to fraction form
    28,105.04/38,788.80 = 16,168.16/x
  3. Step 3: Cross multiply
    28,105.04x = 38,788.80 × 16,168.16
  4. Step 4: Simplify right side
    28,105.04x = 627,143,524.61
  5. Step 5: Solve for x
    x = 627,143,524.61/28,105.04
  6. Step 6: Final answer
    x = 22,314.27

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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.