Home / 21,946.39-30,285.80-11,874.61

Finding the Fourth Proportional to 21,946.39, 30,285.80 and 11,874.61

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Solution

The fourth proportional to 21,946.39, 30,285.80 and 11,874.61 is: 16,386.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,946.39 : 30,285.80 = 11,874.61 : x
  2. Step 2: Convert to fraction form
    21,946.39/30,285.80 = 11,874.61/x
  3. Step 3: Cross multiply
    21,946.39x = 30,285.80 × 11,874.61
  4. Step 4: Simplify right side
    21,946.39x = 359,632,124.41
  5. Step 5: Solve for x
    x = 359,632,124.41/21,946.39
  6. Step 6: Final answer
    x = 16,386.84

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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.