Home / 20,756.52-31,133.70-6,716.32

Finding the Fourth Proportional to 20,756.52, 31,133.70 and 6,716.32

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Solution

The fourth proportional to 20,756.52, 31,133.70 and 6,716.32 is: 10,074.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,756.52 : 31,133.70 = 6,716.32 : x
  2. Step 2: Convert to fraction form
    20,756.52/31,133.70 = 6,716.32/x
  3. Step 3: Cross multiply
    20,756.52x = 31,133.70 × 6,716.32
  4. Step 4: Simplify right side
    20,756.52x = 209,103,814.15
  5. Step 5: Solve for x
    x = 209,103,814.15/20,756.52
  6. Step 6: Final answer
    x = 10,074.13

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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.