Home / 28,546.46-42,831.99-11,909.77

Finding the Fourth Proportional to 28,546.46, 42,831.99 and 11,909.77

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Solution

The fourth proportional to 28,546.46, 42,831.99 and 11,909.77 is: 17,869.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546.46 : 42,831.99 = 11,909.77 : x
  2. Step 2: Convert to fraction form
    28,546.46/42,831.99 = 11,909.77/x
  3. Step 3: Cross multiply
    28,546.46x = 42,831.99 × 11,909.77
  4. Step 4: Simplify right side
    28,546.46x = 510,119,042.46
  5. Step 5: Solve for x
    x = 510,119,042.46/28,546.46
  6. Step 6: Final answer
    x = 17,869.78

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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.