Home / 31,748.80-43,814.40-19,171.04

Finding the Fourth Proportional to 31,748.80, 43,814.40 and 19,171.04

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Solution

The fourth proportional to 31,748.80, 43,814.40 and 19,171.04 is: 26,456.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,748.80 : 43,814.40 = 19,171.04 : x
  2. Step 2: Convert to fraction form
    31,748.80/43,814.40 = 19,171.04/x
  3. Step 3: Cross multiply
    31,748.80x = 43,814.40 × 19,171.04
  4. Step 4: Simplify right side
    31,748.80x = 839,967,614.98
  5. Step 5: Solve for x
    x = 839,967,614.98/31,748.80
  6. Step 6: Final answer
    x = 26,456.67

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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.