Home / 35,508.24-48,998.52-20,400.12

Finding the Fourth Proportional to 35,508.24, 48,998.52 and 20,400.12

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Solution

The fourth proportional to 35,508.24, 48,998.52 and 20,400.12 is: 28,150.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,508.24 : 48,998.52 = 20,400.12 : x
  2. Step 2: Convert to fraction form
    35,508.24/48,998.52 = 20,400.12/x
  3. Step 3: Cross multiply
    35,508.24x = 48,998.52 × 20,400.12
  4. Step 4: Simplify right side
    35,508.24x = 999,575,687.82
  5. Step 5: Solve for x
    x = 999,575,687.82/35,508.24
  6. Step 6: Final answer
    x = 28,150.53

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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.