Home / 20,289.94-28,000.20-11,337.82

Finding the Fourth Proportional to 20,289.94, 28,000.20 and 11,337.82

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Solution

The fourth proportional to 20,289.94, 28,000.20 and 11,337.82 is: 15,646.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289.94 : 28,000.20 = 11,337.82 : x
  2. Step 2: Convert to fraction form
    20,289.94/28,000.20 = 11,337.82/x
  3. Step 3: Cross multiply
    20,289.94x = 28,000.20 × 11,337.82
  4. Step 4: Simplify right side
    20,289.94x = 317,461,227.56
  5. Step 5: Solve for x
    x = 317,461,227.56/20,289.94
  6. Step 6: Final answer
    x = 15,646.24

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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.