Home / 41,171.60-61,709.72-18,938.32

Finding the Fourth Proportional to 41,171.60, 61,709.72 and 18,938.32

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Solution

The fourth proportional to 41,171.60, 61,709.72 and 18,938.32 is: 28,385.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,171.60 : 61,709.72 = 18,938.32 : x
  2. Step 2: Convert to fraction form
    41,171.60/61,709.72 = 18,938.32/x
  3. Step 3: Cross multiply
    41,171.60x = 61,709.72 × 18,938.32
  4. Step 4: Simplify right side
    41,171.60x = 1,168,678,175.50
  5. Step 5: Solve for x
    x = 1,168,678,175.50/41,171.60
  6. Step 6: Final answer
    x = 28,385.54

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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.