Home / 20,697.53-31,039.61-8,851.01

Finding the Fourth Proportional to 20,697.53, 31,039.61 and 8,851.01

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Solution

The fourth proportional to 20,697.53, 31,039.61 and 8,851.01 is: 13,273.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.53 : 31,039.61 = 8,851.01 : x
  2. Step 2: Convert to fraction form
    20,697.53/31,039.61 = 8,851.01/x
  3. Step 3: Cross multiply
    20,697.53x = 31,039.61 × 8,851.01
  4. Step 4: Simplify right side
    20,697.53x = 274,731,699.05
  5. Step 5: Solve for x
    x = 274,731,699.05/20,697.53
  6. Step 6: Final answer
    x = 13,273.65

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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.