Home / 20,927.58-28,881.87-11,497.95

Finding the Fourth Proportional to 20,927.58, 28,881.87 and 11,497.95

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Solution

The fourth proportional to 20,927.58, 28,881.87 and 11,497.95 is: 15,868.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.58 : 28,881.87 = 11,497.95 : x
  2. Step 2: Convert to fraction form
    20,927.58/28,881.87 = 11,497.95/x
  3. Step 3: Cross multiply
    20,927.58x = 28,881.87 × 11,497.95
  4. Step 4: Simplify right side
    20,927.58x = 332,082,297.17
  5. Step 5: Solve for x
    x = 332,082,297.17/20,927.58
  6. Step 6: Final answer
    x = 15,868.17

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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.