Home / 28,228.36-42,342.54-7,452.04

Finding the Fourth Proportional to 28,228.36, 42,342.54 and 7,452.04

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Solution

The fourth proportional to 28,228.36, 42,342.54 and 7,452.04 is: 11,178.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.36 : 42,342.54 = 7,452.04 : x
  2. Step 2: Convert to fraction form
    28,228.36/42,342.54 = 7,452.04/x
  3. Step 3: Cross multiply
    28,228.36x = 42,342.54 × 7,452.04
  4. Step 4: Simplify right side
    28,228.36x = 315,538,301.78
  5. Step 5: Solve for x
    x = 315,538,301.78/28,228.36
  6. Step 6: Final answer
    x = 11,178.06

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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.