Home / 35,490.22-48,974.84-20,372.24

Finding the Fourth Proportional to 35,490.22, 48,974.84 and 20,372.24

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Solution

The fourth proportional to 35,490.22, 48,974.84 and 20,372.24 is: 28,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,490.22 : 48,974.84 = 20,372.24 : x
  2. Step 2: Convert to fraction form
    35,490.22/48,974.84 = 20,372.24/x
  3. Step 3: Cross multiply
    35,490.22x = 48,974.84 × 20,372.24
  4. Step 4: Simplify right side
    35,490.22x = 997,727,194.44
  5. Step 5: Solve for x
    x = 997,727,194.44/35,490.22
  6. Step 6: Final answer
    x = 28,112.74

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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.