Home / 42,989.13-64,519.23-21,944.72

Finding the Fourth Proportional to 42,989.13, 64,519.23 and 21,944.72

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Solution

The fourth proportional to 42,989.13, 64,519.23 and 21,944.72 is: 32,935.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,989.13 : 64,519.23 = 21,944.72 : x
  2. Step 2: Convert to fraction form
    42,989.13/64,519.23 = 21,944.72/x
  3. Step 3: Cross multiply
    42,989.13x = 64,519.23 × 21,944.72
  4. Step 4: Simplify right side
    42,989.13x = 1,415,856,436.97
  5. Step 5: Solve for x
    x = 1,415,856,436.97/42,989.13
  6. Step 6: Final answer
    x = 32,935.22

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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.