Home / 20,557.38-28,369.02-11,604.81

Finding the Fourth Proportional to 20,557.38, 28,369.02 and 11,604.81

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Solution

The fourth proportional to 20,557.38, 28,369.02 and 11,604.81 is: 16,014.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,557.38 : 28,369.02 = 11,604.81 : x
  2. Step 2: Convert to fraction form
    20,557.38/28,369.02 = 11,604.81/x
  3. Step 3: Cross multiply
    20,557.38x = 28,369.02 × 11,604.81
  4. Step 4: Simplify right side
    20,557.38x = 329,217,086.99
  5. Step 5: Solve for x
    x = 329,217,086.99/20,557.38
  6. Step 6: Final answer
    x = 16,014.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.