Home / 20,901.77-28,844.93-11,950.11

Finding the Fourth Proportional to 20,901.77, 28,844.93 and 11,950.11

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Solution

The fourth proportional to 20,901.77, 28,844.93 and 11,950.11 is: 16,491.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,901.77 : 28,844.93 = 11,950.11 : x
  2. Step 2: Convert to fraction form
    20,901.77/28,844.93 = 11,950.11/x
  3. Step 3: Cross multiply
    20,901.77x = 28,844.93 × 11,950.11
  4. Step 4: Simplify right side
    20,901.77x = 344,700,116.32
  5. Step 5: Solve for x
    x = 344,700,116.32/20,901.77
  6. Step 6: Final answer
    x = 16,491.44

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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.