Home / 20,211.04-27,892.74-11,715.76

Finding the Fourth Proportional to 20,211.04, 27,892.74 and 11,715.76

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Solution

The fourth proportional to 20,211.04, 27,892.74 and 11,715.76 is: 16,168.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.04 : 27,892.74 = 11,715.76 : x
  2. Step 2: Convert to fraction form
    20,211.04/27,892.74 = 11,715.76/x
  3. Step 3: Cross multiply
    20,211.04x = 27,892.74 × 11,715.76
  4. Step 4: Simplify right side
    20,211.04x = 326,784,647.58
  5. Step 5: Solve for x
    x = 326,784,647.58/20,211.04
  6. Step 6: Final answer
    x = 16,168.62

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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.