Home / 42,689.67-64,052.97-16,388.28

Finding the Fourth Proportional to 42,689.67, 64,052.97 and 16,388.28

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Solution

The fourth proportional to 42,689.67, 64,052.97 and 16,388.28 is: 24,589.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,689.67 : 64,052.97 = 16,388.28 : x
  2. Step 2: Convert to fraction form
    42,689.67/64,052.97 = 16,388.28/x
  3. Step 3: Cross multiply
    42,689.67x = 64,052.97 × 16,388.28
  4. Step 4: Simplify right side
    42,689.67x = 1,049,718,007.19
  5. Step 5: Solve for x
    x = 1,049,718,007.19/42,689.67
  6. Step 6: Final answer
    x = 24,589.51

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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.