Home / 35,449.58-48,921.54-20,345

Finding the Fourth Proportional to 35,449.58, 48,921.54 and 20,345

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Solution

The fourth proportional to 35,449.58, 48,921.54 and 20,345 is: 28,076.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,449.58 : 48,921.54 = 20,345 : x
  2. Step 2: Convert to fraction form
    35,449.58/48,921.54 = 20,345/x
  3. Step 3: Cross multiply
    35,449.58x = 48,921.54 × 20,345
  4. Step 4: Simplify right side
    35,449.58x = 995,308,731.30
  5. Step 5: Solve for x
    x = 995,308,731.30/35,449.58
  6. Step 6: Final answer
    x = 28,076.74

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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.