Home / 20,623.36-30,934.72-5,040.64

Finding the Fourth Proportional to 20,623.36, 30,934.72 and 5,040.64

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Solution

The fourth proportional to 20,623.36, 30,934.72 and 5,040.64 is: 7,560.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.36 : 30,934.72 = 5,040.64 : x
  2. Step 2: Convert to fraction form
    20,623.36/30,934.72 = 5,040.64/x
  3. Step 3: Cross multiply
    20,623.36x = 30,934.72 × 5,040.64
  4. Step 4: Simplify right side
    20,623.36x = 155,930,787.02
  5. Step 5: Solve for x
    x = 155,930,787.02/20,623.36
  6. Step 6: Final answer
    x = 7,560.88

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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.