Home / 25,713.86-38,573.82-9,915.21

Finding the Fourth Proportional to 25,713.86, 38,573.82 and 9,915.21

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Solution

The fourth proportional to 25,713.86, 38,573.82 and 9,915.21 is: 14,873.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,713.86 : 38,573.82 = 9,915.21 : x
  2. Step 2: Convert to fraction form
    25,713.86/38,573.82 = 9,915.21/x
  3. Step 3: Cross multiply
    25,713.86x = 38,573.82 × 9,915.21
  4. Step 4: Simplify right side
    25,713.86x = 382,467,525.80
  5. Step 5: Solve for x
    x = 382,467,525.80/25,713.86
  6. Step 6: Final answer
    x = 14,873.99

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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.