Home / 17,920.73-26,881.13-5,440.86

Finding the Fourth Proportional to 17,920.73, 26,881.13 and 5,440.86

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Solution

The fourth proportional to 17,920.73, 26,881.13 and 5,440.86 is: 8,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.73 : 26,881.13 = 5,440.86 : x
  2. Step 2: Convert to fraction form
    17,920.73/26,881.13 = 5,440.86/x
  3. Step 3: Cross multiply
    17,920.73x = 26,881.13 × 5,440.86
  4. Step 4: Simplify right side
    17,920.73x = 146,256,478.57
  5. Step 5: Solve for x
    x = 146,256,478.57/17,920.73
  6. Step 6: Final answer
    x = 8,161.30

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1.5x scale

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.