Home / 20,993.02-31,484.05-9,896.76

Finding the Fourth Proportional to 20,993.02, 31,484.05 and 9,896.76

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Solution

The fourth proportional to 20,993.02, 31,484.05 and 9,896.76 is: 14,842.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993.02 : 31,484.05 = 9,896.76 : x
  2. Step 2: Convert to fraction form
    20,993.02/31,484.05 = 9,896.76/x
  3. Step 3: Cross multiply
    20,993.02x = 31,484.05 × 9,896.76
  4. Step 4: Simplify right side
    20,993.02x = 311,590,086.68
  5. Step 5: Solve for x
    x = 311,590,086.68/20,993.02
  6. Step 6: Final answer
    x = 14,842.56

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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.