Home / 31,193.64-43,033.50-21,118.41

Finding the Fourth Proportional to 31,193.64, 43,033.50 and 21,118.41

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Solution

The fourth proportional to 31,193.64, 43,033.50 and 21,118.41 is: 29,134.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,193.64 : 43,033.50 = 21,118.41 : x
  2. Step 2: Convert to fraction form
    31,193.64/43,033.50 = 21,118.41/x
  3. Step 3: Cross multiply
    31,193.64x = 43,033.50 × 21,118.41
  4. Step 4: Simplify right side
    31,193.64x = 908,799,096.74
  5. Step 5: Solve for x
    x = 908,799,096.74/31,193.64
  6. Step 6: Final answer
    x = 29,134.12

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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.