Home / 25,876.21-38,715.90-15,990.97

Finding the Fourth Proportional to 25,876.21, 38,715.90 and 15,990.97

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Solution

The fourth proportional to 25,876.21, 38,715.90 and 15,990.97 is: 23,925.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,876.21 : 38,715.90 = 15,990.97 : x
  2. Step 2: Convert to fraction form
    25,876.21/38,715.90 = 15,990.97/x
  3. Step 3: Cross multiply
    25,876.21x = 38,715.90 × 15,990.97
  4. Step 4: Simplify right side
    25,876.21x = 619,104,795.42
  5. Step 5: Solve for x
    x = 619,104,795.42/25,876.21
  6. Step 6: Final answer
    x = 23,925.64

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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.