Home / 31,909.89-44,040.60-19,170.17

Finding the Fourth Proportional to 31,909.89, 44,040.60 and 19,170.17

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Solution

The fourth proportional to 31,909.89, 44,040.60 and 19,170.17 is: 26,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,909.89 : 44,040.60 = 19,170.17 : x
  2. Step 2: Convert to fraction form
    31,909.89/44,040.60 = 19,170.17/x
  3. Step 3: Cross multiply
    31,909.89x = 44,040.60 × 19,170.17
  4. Step 4: Simplify right side
    31,909.89x = 844,265,568.70
  5. Step 5: Solve for x
    x = 844,265,568.70/31,909.89
  6. Step 6: Final answer
    x = 26,457.80

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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.