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Finding the Fourth Proportional to 31,940.64, 44,101.84 and 19,382.40

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Solution

The fourth proportional to 31,940.64, 44,101.84 and 19,382.40 is: 26,762.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,940.64 : 44,101.84 = 19,382.40 : x
  2. Step 2: Convert to fraction form
    31,940.64/44,101.84 = 19,382.40/x
  3. Step 3: Cross multiply
    31,940.64x = 44,101.84 × 19,382.40
  4. Step 4: Simplify right side
    31,940.64x = 854,799,503.62
  5. Step 5: Solve for x
    x = 854,799,503.62/31,940.64
  6. Step 6: Final answer
    x = 26,762.13

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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.