Home / 20,032.52-30,022.86-9,638.60

Finding the Fourth Proportional to 20,032.52, 30,022.86 and 9,638.60

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Solution

The fourth proportional to 20,032.52, 30,022.86 and 9,638.60 is: 14,445.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,032.52 : 30,022.86 = 9,638.60 : x
  2. Step 2: Convert to fraction form
    20,032.52/30,022.86 = 9,638.60/x
  3. Step 3: Cross multiply
    20,032.52x = 30,022.86 × 9,638.60
  4. Step 4: Simplify right side
    20,032.52x = 289,378,338.40
  5. Step 5: Solve for x
    x = 289,378,338.40/20,032.52
  6. Step 6: Final answer
    x = 14,445.43

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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.