Home / 22,259.76-30,716.64-12,828.96

Finding the Fourth Proportional to 22,259.76, 30,716.64 and 12,828.96

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Solution

The fourth proportional to 22,259.76, 30,716.64 and 12,828.96 is: 17,702.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,259.76 : 30,716.64 = 12,828.96 : x
  2. Step 2: Convert to fraction form
    22,259.76/30,716.64 = 12,828.96/x
  3. Step 3: Cross multiply
    22,259.76x = 30,716.64 × 12,828.96
  4. Step 4: Simplify right side
    22,259.76x = 394,062,545.89
  5. Step 5: Solve for x
    x = 394,062,545.89/22,259.76
  6. Step 6: Final answer
    x = 17,702.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.