Home / 20,916.14-31,375.82-5,333.63

Finding the Fourth Proportional to 20,916.14, 31,375.82 and 5,333.63

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Solution

The fourth proportional to 20,916.14, 31,375.82 and 5,333.63 is: 8,000.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916.14 : 31,375.82 = 5,333.63 : x
  2. Step 2: Convert to fraction form
    20,916.14/31,375.82 = 5,333.63/x
  3. Step 3: Cross multiply
    20,916.14x = 31,375.82 × 5,333.63
  4. Step 4: Simplify right side
    20,916.14x = 167,346,871.28
  5. Step 5: Solve for x
    x = 167,346,871.28/20,916.14
  6. Step 6: Final answer
    x = 8,000.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.