Home / 28,536.14-42,806.27-8,812.15

Finding the Fourth Proportional to 28,536.14, 42,806.27 and 8,812.15

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Solution

The fourth proportional to 28,536.14, 42,806.27 and 8,812.15 is: 13,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.14 : 42,806.27 = 8,812.15 : x
  2. Step 2: Convert to fraction form
    28,536.14/42,806.27 = 8,812.15/x
  3. Step 3: Cross multiply
    28,536.14x = 42,806.27 × 8,812.15
  4. Step 4: Simplify right side
    28,536.14x = 377,215,187.20
  5. Step 5: Solve for x
    x = 377,215,187.20/28,536.14
  6. Step 6: Final answer
    x = 13,218.86

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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.