Home / 20,140.80-30,217.23-6,993.24

Finding the Fourth Proportional to 20,140.80, 30,217.23 and 6,993.24

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Solution

The fourth proportional to 20,140.80, 30,217.23 and 6,993.24 is: 10,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.80 : 30,217.23 = 6,993.24 : x
  2. Step 2: Convert to fraction form
    20,140.80/30,217.23 = 6,993.24/x
  3. Step 3: Cross multiply
    20,140.80x = 30,217.23 × 6,993.24
  4. Step 4: Simplify right side
    20,140.80x = 211,316,341.53
  5. Step 5: Solve for x
    x = 211,316,341.53/20,140.80
  6. Step 6: Final answer
    x = 10,491.95

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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.