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Finding the Fourth Proportional to 28,410.31, 42,616.07 and 7,350.80

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Solution

The fourth proportional to 28,410.31, 42,616.07 and 7,350.80 is: 11,026.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.31 : 42,616.07 = 7,350.80 : x
  2. Step 2: Convert to fraction form
    28,410.31/42,616.07 = 7,350.80/x
  3. Step 3: Cross multiply
    28,410.31x = 42,616.07 × 7,350.80
  4. Step 4: Simplify right side
    28,410.31x = 313,262,170.60
  5. Step 5: Solve for x
    x = 313,262,170.60/28,410.31
  6. Step 6: Final answer
    x = 11,026.36

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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.