Home / 17,920.48-26,880.76-5,440.61

Finding the Fourth Proportional to 17,920.48, 26,880.76 and 5,440.61

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Solution

The fourth proportional to 17,920.48, 26,880.76 and 5,440.61 is: 8,160.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.48 : 26,880.76 = 5,440.61 : x
  2. Step 2: Convert to fraction form
    17,920.48/26,880.76 = 5,440.61/x
  3. Step 3: Cross multiply
    17,920.48x = 26,880.76 × 5,440.61
  4. Step 4: Simplify right side
    17,920.48x = 146,247,731.66
  5. Step 5: Solve for x
    x = 146,247,731.66/17,920.48
  6. Step 6: Final answer
    x = 8,160.93

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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.