Home / 20,289.35-28,000.62-11,337.23

Finding the Fourth Proportional to 20,289.35, 28,000.62 and 11,337.23

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Solution

The fourth proportional to 20,289.35, 28,000.62 and 11,337.23 is: 15,646.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289.35 : 28,000.62 = 11,337.23 : x
  2. Step 2: Convert to fraction form
    20,289.35/28,000.62 = 11,337.23/x
  3. Step 3: Cross multiply
    20,289.35x = 28,000.62 × 11,337.23
  4. Step 4: Simplify right side
    20,289.35x = 317,449,539.08
  5. Step 5: Solve for x
    x = 317,449,539.08/20,289.35
  6. Step 6: Final answer
    x = 15,646.11

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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.