Home / 28,218.83-42,327.23-11,574.54

Finding the Fourth Proportional to 28,218.83, 42,327.23 and 11,574.54

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Solution

The fourth proportional to 28,218.83, 42,327.23 and 11,574.54 is: 17,361.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.83 : 42,327.23 = 11,574.54 : x
  2. Step 2: Convert to fraction form
    28,218.83/42,327.23 = 11,574.54/x
  3. Step 3: Cross multiply
    28,218.83x = 42,327.23 × 11,574.54
  4. Step 4: Simplify right side
    28,218.83x = 489,918,158.85
  5. Step 5: Solve for x
    x = 489,918,158.85/28,218.83
  6. Step 6: Final answer
    x = 17,361.39

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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.