Home / 47,380.38-70,990.26-28,621.02

Finding the Fourth Proportional to 47,380.38, 70,990.26 and 28,621.02

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Solution

The fourth proportional to 47,380.38, 70,990.26 and 28,621.02 is: 42,883.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,380.38 : 70,990.26 = 28,621.02 : x
  2. Step 2: Convert to fraction form
    47,380.38/70,990.26 = 28,621.02/x
  3. Step 3: Cross multiply
    47,380.38x = 70,990.26 × 28,621.02
  4. Step 4: Simplify right side
    47,380.38x = 2,031,813,651.27
  5. Step 5: Solve for x
    x = 2,031,813,651.27/47,380.38
  6. Step 6: Final answer
    x = 42,883.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.