Home / 31,869.40-43,990.68-19,294.14

Finding the Fourth Proportional to 31,869.40, 43,990.68 and 19,294.14

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Solution

The fourth proportional to 31,869.40, 43,990.68 and 19,294.14 is: 26,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,869.40 : 43,990.68 = 19,294.14 : x
  2. Step 2: Convert to fraction form
    31,869.40/43,990.68 = 19,294.14/x
  3. Step 3: Cross multiply
    31,869.40x = 43,990.68 × 19,294.14
  4. Step 4: Simplify right side
    31,869.40x = 848,762,338.62
  5. Step 5: Solve for x
    x = 848,762,338.62/31,869.40
  6. Step 6: Final answer
    x = 26,632.52

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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.