Home / 28,911.60-43,367.40-9,192.15

Finding the Fourth Proportional to 28,911.60, 43,367.40 and 9,192.15

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Solution

The fourth proportional to 28,911.60, 43,367.40 and 9,192.15 is: 13,788.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.60 : 43,367.40 = 9,192.15 : x
  2. Step 2: Convert to fraction form
    28,911.60/43,367.40 = 9,192.15/x
  3. Step 3: Cross multiply
    28,911.60x = 43,367.40 × 9,192.15
  4. Step 4: Simplify right side
    28,911.60x = 398,639,645.91
  5. Step 5: Solve for x
    x = 398,639,645.91/28,911.60
  6. Step 6: Final answer
    x = 13,788.23

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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.