Home / 42,874.23-64,333.30-20,410.33

Finding the Fourth Proportional to 42,874.23, 64,333.30 and 20,410.33

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Solution

The fourth proportional to 42,874.23, 64,333.30 and 20,410.33 is: 30,625.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,874.23 : 64,333.30 = 20,410.33 : x
  2. Step 2: Convert to fraction form
    42,874.23/64,333.30 = 20,410.33/x
  3. Step 3: Cross multiply
    42,874.23x = 64,333.30 × 20,410.33
  4. Step 4: Simplify right side
    42,874.23x = 1,313,063,882.99
  5. Step 5: Solve for x
    x = 1,313,063,882.99/42,874.23
  6. Step 6: Final answer
    x = 30,625.95

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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.