Home / 28,223.36-42,336.64-8,504.64

Finding the Fourth Proportional to 28,223.36, 42,336.64 and 8,504.64

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Solution

The fourth proportional to 28,223.36, 42,336.64 and 8,504.64 is: 12,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.36 : 42,336.64 = 8,504.64 : x
  2. Step 2: Convert to fraction form
    28,223.36/42,336.64 = 8,504.64/x
  3. Step 3: Cross multiply
    28,223.36x = 42,336.64 × 8,504.64
  4. Step 4: Simplify right side
    28,223.36x = 360,057,882.01
  5. Step 5: Solve for x
    x = 360,057,882.01/28,223.36
  6. Step 6: Final answer
    x = 12,757.44

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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.