Home / 28,912.41-43,358.90-10,191.69

Finding the Fourth Proportional to 28,912.41, 43,358.90 and 10,191.69

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Solution

The fourth proportional to 28,912.41, 43,358.90 and 10,191.69 is: 15,284.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912.41 : 43,358.90 = 10,191.69 : x
  2. Step 2: Convert to fraction form
    28,912.41/43,358.90 = 10,191.69/x
  3. Step 3: Cross multiply
    28,912.41x = 43,358.90 × 10,191.69
  4. Step 4: Simplify right side
    28,912.41x = 441,900,416.58
  5. Step 5: Solve for x
    x = 441,900,416.58/28,912.41
  6. Step 6: Final answer
    x = 15,284.11

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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.