Home / 20,095.84-27,732.59-11,143.72

Finding the Fourth Proportional to 20,095.84, 27,732.59 and 11,143.72

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Solution

The fourth proportional to 20,095.84, 27,732.59 and 11,143.72 is: 15,378.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.84 : 27,732.59 = 11,143.72 : x
  2. Step 2: Convert to fraction form
    20,095.84/27,732.59 = 11,143.72/x
  3. Step 3: Cross multiply
    20,095.84x = 27,732.59 × 11,143.72
  4. Step 4: Simplify right side
    20,095.84x = 309,044,217.83
  5. Step 5: Solve for x
    x = 309,044,217.83/20,095.84
  6. Step 6: Final answer
    x = 15,378.52

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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.