Home / 20,122.77-30,185.88-8,277.24

Finding the Fourth Proportional to 20,122.77, 30,185.88 and 8,277.24

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Solution

The fourth proportional to 20,122.77, 30,185.88 and 8,277.24 is: 12,416.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.77 : 30,185.88 = 8,277.24 : x
  2. Step 2: Convert to fraction form
    20,122.77/30,185.88 = 8,277.24/x
  3. Step 3: Cross multiply
    20,122.77x = 30,185.88 × 8,277.24
  4. Step 4: Simplify right side
    20,122.77x = 249,855,773.37
  5. Step 5: Solve for x
    x = 249,855,773.37/20,122.77
  6. Step 6: Final answer
    x = 12,416.57

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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.