Home / 35,645.76-49,179.12-20,538.05

Finding the Fourth Proportional to 35,645.76, 49,179.12 and 20,538.05

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Solution

The fourth proportional to 35,645.76, 49,179.12 and 20,538.05 is: 28,335.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,645.76 : 49,179.12 = 20,538.05 : x
  2. Step 2: Convert to fraction form
    35,645.76/49,179.12 = 20,538.05/x
  3. Step 3: Cross multiply
    35,645.76x = 49,179.12 × 20,538.05
  4. Step 4: Simplify right side
    35,645.76x = 1,010,042,979.62
  5. Step 5: Solve for x
    x = 1,010,042,979.62/35,645.76
  6. Step 6: Final answer
    x = 28,335.57

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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.