Home / 33,155.52-45,751.20-18,810.78

Finding the Fourth Proportional to 33,155.52, 45,751.20 and 18,810.78

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Solution

The fourth proportional to 33,155.52, 45,751.20 and 18,810.78 is: 25,956.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,155.52 : 45,751.20 = 18,810.78 : x
  2. Step 2: Convert to fraction form
    33,155.52/45,751.20 = 18,810.78/x
  3. Step 3: Cross multiply
    33,155.52x = 45,751.20 × 18,810.78
  4. Step 4: Simplify right side
    33,155.52x = 860,615,757.94
  5. Step 5: Solve for x
    x = 860,615,757.94/33,155.52
  6. Step 6: Final answer
    x = 25,956.94

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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.