Home / 42,908.88-64,376.76-19,236.27

Finding the Fourth Proportional to 42,908.88, 64,376.76 and 19,236.27

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Solution

The fourth proportional to 42,908.88, 64,376.76 and 19,236.27 is: 28,860.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,908.88 : 64,376.76 = 19,236.27 : x
  2. Step 2: Convert to fraction form
    42,908.88/64,376.76 = 19,236.27/x
  3. Step 3: Cross multiply
    42,908.88x = 64,376.76 × 19,236.27
  4. Step 4: Simplify right side
    42,908.88x = 1,238,368,737.09
  5. Step 5: Solve for x
    x = 1,238,368,737.09/42,908.88
  6. Step 6: Final answer
    x = 28,860.43

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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.