Home / 21,841.80-30,144.18-12,152.22

Finding the Fourth Proportional to 21,841.80, 30,144.18 and 12,152.22

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Solution

The fourth proportional to 21,841.80, 30,144.18 and 12,152.22 is: 16,771.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,841.80 : 30,144.18 = 12,152.22 : x
  2. Step 2: Convert to fraction form
    21,841.80/30,144.18 = 12,152.22/x
  3. Step 3: Cross multiply
    21,841.80x = 30,144.18 × 12,152.22
  4. Step 4: Simplify right side
    21,841.80x = 366,318,707.08
  5. Step 5: Solve for x
    x = 366,318,707.08/21,841.80
  6. Step 6: Final answer
    x = 16,771.45

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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.