Home / 28,645.62-42,775.52-23,390.90

Finding the Fourth Proportional to 28,645.62, 42,775.52 and 23,390.90

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Solution

The fourth proportional to 28,645.62, 42,775.52 and 23,390.90 is: 34,928.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,645.62 : 42,775.52 = 23,390.90 : x
  2. Step 2: Convert to fraction form
    28,645.62/42,775.52 = 23,390.90/x
  3. Step 3: Cross multiply
    28,645.62x = 42,775.52 × 23,390.90
  4. Step 4: Simplify right side
    28,645.62x = 1,000,557,910.77
  5. Step 5: Solve for x
    x = 1,000,557,910.77/28,645.62
  6. Step 6: Final answer
    x = 34,928.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.