Home / 42,021.87-57,989.43-22,901.82

Finding the Fourth Proportional to 42,021.87, 57,989.43 and 22,901.82

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Solution

The fourth proportional to 42,021.87, 57,989.43 and 22,901.82 is: 31,604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,021.87 : 57,989.43 = 22,901.82 : x
  2. Step 2: Convert to fraction form
    42,021.87/57,989.43 = 22,901.82/x
  3. Step 3: Cross multiply
    42,021.87x = 57,989.43 × 22,901.82
  4. Step 4: Simplify right side
    42,021.87x = 1,328,063,487.76
  5. Step 5: Solve for x
    x = 1,328,063,487.76/42,021.87
  6. Step 6: Final answer
    x = 31,604.10

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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.