Home / 28,147.52-42,218.15-7,087.56

Finding the Fourth Proportional to 28,147.52, 42,218.15 and 7,087.56

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Solution

The fourth proportional to 28,147.52, 42,218.15 and 7,087.56 is: 10,630.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.52 : 42,218.15 = 7,087.56 : x
  2. Step 2: Convert to fraction form
    28,147.52/42,218.15 = 7,087.56/x
  3. Step 3: Cross multiply
    28,147.52x = 42,218.15 × 7,087.56
  4. Step 4: Simplify right side
    28,147.52x = 299,223,477.46
  5. Step 5: Solve for x
    x = 299,223,477.46/28,147.52
  6. Step 6: Final answer
    x = 10,630.54

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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.