Home / 20,916.48-31,363.38-6,873.24

Finding the Fourth Proportional to 20,916.48, 31,363.38 and 6,873.24

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Solution

The fourth proportional to 20,916.48, 31,363.38 and 6,873.24 is: 10,306.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916.48 : 31,363.38 = 6,873.24 : x
  2. Step 2: Convert to fraction form
    20,916.48/31,363.38 = 6,873.24/x
  3. Step 3: Cross multiply
    20,916.48x = 31,363.38 × 6,873.24
  4. Step 4: Simplify right side
    20,916.48x = 215,568,037.95
  5. Step 5: Solve for x
    x = 215,568,037.95/20,916.48
  6. Step 6: Final answer
    x = 10,306.13

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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.