Home / 35,542.45-48,991.18-30,931.42

Finding the Fourth Proportional to 35,542.45, 48,991.18 and 30,931.42

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Solution

The fourth proportional to 35,542.45, 48,991.18 and 30,931.42 is: 42,635.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,542.45 : 48,991.18 = 30,931.42 : x
  2. Step 2: Convert to fraction form
    35,542.45/48,991.18 = 30,931.42/x
  3. Step 3: Cross multiply
    35,542.45x = 48,991.18 × 30,931.42
  4. Step 4: Simplify right side
    35,542.45x = 1,515,366,714.92
  5. Step 5: Solve for x
    x = 1,515,366,714.92/35,542.45
  6. Step 6: Final answer
    x = 42,635.41

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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.