Home / 19,276.60-28,883.85-10,931.80

Finding the Fourth Proportional to 19,276.60, 28,883.85 and 10,931.80

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Solution

The fourth proportional to 19,276.60, 28,883.85 and 10,931.80 is: 16,380.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.60 : 28,883.85 = 10,931.80 : x
  2. Step 2: Convert to fraction form
    19,276.60/28,883.85 = 10,931.80/x
  3. Step 3: Cross multiply
    19,276.60x = 28,883.85 × 10,931.80
  4. Step 4: Simplify right side
    19,276.60x = 315,752,471.43
  5. Step 5: Solve for x
    x = 315,752,471.43/19,276.60
  6. Step 6: Final answer
    x = 16,380.09

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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.