Home / 25,912.90-38,869.98-19,380.57

Finding the Fourth Proportional to 25,912.90, 38,869.98 and 19,380.57

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Solution

The fourth proportional to 25,912.90, 38,869.98 and 19,380.57 is: 29,071.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,912.90 : 38,869.98 = 19,380.57 : x
  2. Step 2: Convert to fraction form
    25,912.90/38,869.98 = 19,380.57/x
  3. Step 3: Cross multiply
    25,912.90x = 38,869.98 × 19,380.57
  4. Step 4: Simplify right side
    25,912.90x = 753,322,368.29
  5. Step 5: Solve for x
    x = 753,322,368.29/25,912.90
  6. Step 6: Final answer
    x = 29,071.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.