Home / 28,400.93-42,600.79-7,624.43

Finding the Fourth Proportional to 28,400.93, 42,600.79 and 7,624.43

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Solution

The fourth proportional to 28,400.93, 42,600.79 and 7,624.43 is: 11,436.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.93 : 42,600.79 = 7,624.43 : x
  2. Step 2: Convert to fraction form
    28,400.93/42,600.79 = 7,624.43/x
  3. Step 3: Cross multiply
    28,400.93x = 42,600.79 × 7,624.43
  4. Step 4: Simplify right side
    28,400.93x = 324,806,654.69
  5. Step 5: Solve for x
    x = 324,806,654.69/28,400.93
  6. Step 6: Final answer
    x = 11,436.48

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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.