Home / 20,934.10-31,403.87-6,895.56

Finding the Fourth Proportional to 20,934.10, 31,403.87 and 6,895.56

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Solution

The fourth proportional to 20,934.10, 31,403.87 and 6,895.56 is: 10,344.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.10 : 31,403.87 = 6,895.56 : x
  2. Step 2: Convert to fraction form
    20,934.10/31,403.87 = 6,895.56/x
  3. Step 3: Cross multiply
    20,934.10x = 31,403.87 × 6,895.56
  4. Step 4: Simplify right side
    20,934.10x = 216,547,269.82
  5. Step 5: Solve for x
    x = 216,547,269.82/20,934.10
  6. Step 6: Final answer
    x = 10,344.24

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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.