Home / 22,277.10-30,742.90-12,716.80

Finding the Fourth Proportional to 22,277.10, 30,742.90 and 12,716.80

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Solution

The fourth proportional to 22,277.10, 30,742.90 and 12,716.80 is: 17,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,277.10 : 30,742.90 = 12,716.80 : x
  2. Step 2: Convert to fraction form
    22,277.10/30,742.90 = 12,716.80/x
  3. Step 3: Cross multiply
    22,277.10x = 30,742.90 × 12,716.80
  4. Step 4: Simplify right side
    22,277.10x = 390,951,310.72
  5. Step 5: Solve for x
    x = 390,951,310.72/22,277.10
  6. Step 6: Final answer
    x = 17,549.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.