Home / 31,330.62-46,981.32-11,608.74

Finding the Fourth Proportional to 31,330.62, 46,981.32 and 11,608.74

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Solution

The fourth proportional to 31,330.62, 46,981.32 and 11,608.74 is: 17,407.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,330.62 : 46,981.32 = 11,608.74 : x
  2. Step 2: Convert to fraction form
    31,330.62/46,981.32 = 11,608.74/x
  3. Step 3: Cross multiply
    31,330.62x = 46,981.32 × 11,608.74
  4. Step 4: Simplify right side
    31,330.62x = 545,393,928.74
  5. Step 5: Solve for x
    x = 545,393,928.74/31,330.62
  6. Step 6: Final answer
    x = 17,407.70

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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.