Home / 28,181.70-42,155.85-25,615.62

Finding the Fourth Proportional to 28,181.70, 42,155.85 and 25,615.62

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Solution

The fourth proportional to 28,181.70, 42,155.85 and 25,615.62 is: 38,317.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.70 : 42,155.85 = 25,615.62 : x
  2. Step 2: Convert to fraction form
    28,181.70/42,155.85 = 25,615.62/x
  3. Step 3: Cross multiply
    28,181.70x = 42,155.85 × 25,615.62
  4. Step 4: Simplify right side
    28,181.70x = 1,079,848,234.38
  5. Step 5: Solve for x
    x = 1,079,848,234.38/28,181.70
  6. Step 6: Final answer
    x = 38,317.36

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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.