Home / 20,434.83-30,652.21-5,643.71

Finding the Fourth Proportional to 20,434.83, 30,652.21 and 5,643.71

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Solution

The fourth proportional to 20,434.83, 30,652.21 and 5,643.71 is: 8,465.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.83 : 30,652.21 = 5,643.71 : x
  2. Step 2: Convert to fraction form
    20,434.83/30,652.21 = 5,643.71/x
  3. Step 3: Cross multiply
    20,434.83x = 30,652.21 × 5,643.71
  4. Step 4: Simplify right side
    20,434.83x = 172,992,184.10
  5. Step 5: Solve for x
    x = 172,992,184.10/20,434.83
  6. Step 6: Final answer
    x = 8,465.56

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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.