Home / 20,313.30-28,034.99-11,362.66

Finding the Fourth Proportional to 20,313.30, 28,034.99 and 11,362.66

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Solution

The fourth proportional to 20,313.30, 28,034.99 and 11,362.66 is: 15,681.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,313.30 : 28,034.99 = 11,362.66 : x
  2. Step 2: Convert to fraction form
    20,313.30/28,034.99 = 11,362.66/x
  3. Step 3: Cross multiply
    20,313.30x = 28,034.99 × 11,362.66
  4. Step 4: Simplify right side
    20,313.30x = 318,552,039.10
  5. Step 5: Solve for x
    x = 318,552,039.10/20,313.30
  6. Step 6: Final answer
    x = 15,681.95

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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.