Home / 20,345.91-30,519.66-6,307.38

Finding the Fourth Proportional to 20,345.91, 30,519.66 and 6,307.38

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Solution

The fourth proportional to 20,345.91, 30,519.66 and 6,307.38 is: 9,461.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,345.91 : 30,519.66 = 6,307.38 : x
  2. Step 2: Convert to fraction form
    20,345.91/30,519.66 = 6,307.38/x
  3. Step 3: Cross multiply
    20,345.91x = 30,519.66 × 6,307.38
  4. Step 4: Simplify right side
    20,345.91x = 192,499,093.09
  5. Step 5: Solve for x
    x = 192,499,093.09/20,345.91
  6. Step 6: Final answer
    x = 9,461.32

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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.