Home / 28,425.93-42,638.78-22,191.16

Finding the Fourth Proportional to 28,425.93, 42,638.78 and 22,191.16

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Solution

The fourth proportional to 28,425.93, 42,638.78 and 22,191.16 is: 33,286.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425.93 : 42,638.78 = 22,191.16 : x
  2. Step 2: Convert to fraction form
    28,425.93/42,638.78 = 22,191.16/x
  3. Step 3: Cross multiply
    28,425.93x = 42,638.78 × 22,191.16
  4. Step 4: Simplify right side
    28,425.93x = 946,203,893.19
  5. Step 5: Solve for x
    x = 946,203,893.19/28,425.93
  6. Step 6: Final answer
    x = 33,286.64

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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.