Home / 41,030.20-61,520.70-18,815.75

Finding the Fourth Proportional to 41,030.20, 61,520.70 and 18,815.75

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Solution

The fourth proportional to 41,030.20, 61,520.70 and 18,815.75 is: 28,212.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,030.20 : 61,520.70 = 18,815.75 : x
  2. Step 2: Convert to fraction form
    41,030.20/61,520.70 = 18,815.75/x
  3. Step 3: Cross multiply
    41,030.20x = 61,520.70 × 18,815.75
  4. Step 4: Simplify right side
    41,030.20x = 1,157,558,111.03
  5. Step 5: Solve for x
    x = 1,157,558,111.03/41,030.20
  6. Step 6: Final answer
    x = 28,212.34

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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.