Home / 28,768.40-43,169.28-12,127.16

Finding the Fourth Proportional to 28,768.40, 43,169.28 and 12,127.16

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Solution

The fourth proportional to 28,768.40, 43,169.28 and 12,127.16 is: 18,197.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.40 : 43,169.28 = 12,127.16 : x
  2. Step 2: Convert to fraction form
    28,768.40/43,169.28 = 12,127.16/x
  3. Step 3: Cross multiply
    28,768.40x = 43,169.28 × 12,127.16
  4. Step 4: Simplify right side
    28,768.40x = 523,520,765.64
  5. Step 5: Solve for x
    x = 523,520,765.64/28,768.40
  6. Step 6: Final answer
    x = 18,197.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.