Home / 28,049.27-42,041.58-11,391

Finding the Fourth Proportional to 28,049.27, 42,041.58 and 11,391

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Solution

The fourth proportional to 28,049.27, 42,041.58 and 11,391 is: 17,073.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,049.27 : 42,041.58 = 11,391 : x
  2. Step 2: Convert to fraction form
    28,049.27/42,041.58 = 11,391/x
  3. Step 3: Cross multiply
    28,049.27x = 42,041.58 × 11,391
  4. Step 4: Simplify right side
    28,049.27x = 478,895,637.78
  5. Step 5: Solve for x
    x = 478,895,637.78/28,049.27
  6. Step 6: Final answer
    x = 17,073.38

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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.