Home / 40,821.76-61,245.87-20,030.68

Finding the Fourth Proportional to 40,821.76, 61,245.87 and 20,030.68

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Solution

The fourth proportional to 40,821.76, 61,245.87 and 20,030.68 is: 30,052.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,821.76 : 61,245.87 = 20,030.68 : x
  2. Step 2: Convert to fraction form
    40,821.76/61,245.87 = 20,030.68/x
  3. Step 3: Cross multiply
    40,821.76x = 61,245.87 × 20,030.68
  4. Step 4: Simplify right side
    40,821.76x = 1,226,796,423.29
  5. Step 5: Solve for x
    x = 1,226,796,423.29/40,821.76
  6. Step 6: Final answer
    x = 30,052.51

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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.