Home / 28,276.12-42,416.22-8,556.23

Finding the Fourth Proportional to 28,276.12, 42,416.22 and 8,556.23

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Solution

The fourth proportional to 28,276.12, 42,416.22 and 8,556.23 is: 12,834.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276.12 : 42,416.22 = 8,556.23 : x
  2. Step 2: Convert to fraction form
    28,276.12/42,416.22 = 8,556.23/x
  3. Step 3: Cross multiply
    28,276.12x = 42,416.22 × 8,556.23
  4. Step 4: Simplify right side
    28,276.12x = 362,923,072.18
  5. Step 5: Solve for x
    x = 362,923,072.18/28,276.12
  6. Step 6: Final answer
    x = 12,834.97

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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.