Home / 31,476.80-43,401.12-18,896.96

Finding the Fourth Proportional to 31,476.80, 43,401.12 and 18,896.96

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Solution

The fourth proportional to 31,476.80, 43,401.12 and 18,896.96 is: 26,055.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,476.80 : 43,401.12 = 18,896.96 : x
  2. Step 2: Convert to fraction form
    31,476.80/43,401.12 = 18,896.96/x
  3. Step 3: Cross multiply
    31,476.80x = 43,401.12 × 18,896.96
  4. Step 4: Simplify right side
    31,476.80x = 820,149,228.60
  5. Step 5: Solve for x
    x = 820,149,228.60/31,476.80
  6. Step 6: Final answer
    x = 26,055.67

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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.