Home / 47,511.58-65,555.56-28,388.48

Finding the Fourth Proportional to 47,511.58, 65,555.56 and 28,388.48

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Solution

The fourth proportional to 47,511.58, 65,555.56 and 28,388.48 is: 39,169.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,511.58 : 65,555.56 = 28,388.48 : x
  2. Step 2: Convert to fraction form
    47,511.58/65,555.56 = 28,388.48/x
  3. Step 3: Cross multiply
    47,511.58x = 65,555.56 × 28,388.48
  4. Step 4: Simplify right side
    47,511.58x = 1,861,022,703.95
  5. Step 5: Solve for x
    x = 1,861,022,703.95/47,511.58
  6. Step 6: Final answer
    x = 39,169.88

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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.