Home / 28,019.86-42,041.03-11,381.18

Finding the Fourth Proportional to 28,019.86, 42,041.03 and 11,381.18

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Solution

The fourth proportional to 28,019.86, 42,041.03 and 11,381.18 is: 17,076.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,019.86 : 42,041.03 = 11,381.18 : x
  2. Step 2: Convert to fraction form
    28,019.86/42,041.03 = 11,381.18/x
  3. Step 3: Cross multiply
    28,019.86x = 42,041.03 × 11,381.18
  4. Step 4: Simplify right side
    28,019.86x = 478,476,262.70
  5. Step 5: Solve for x
    x = 478,476,262.70/28,019.86
  6. Step 6: Final answer
    x = 17,076.33

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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.