Home / 25,611.30-38,315.88-19,389.42

Finding the Fourth Proportional to 25,611.30, 38,315.88 and 19,389.42

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Solution

The fourth proportional to 25,611.30, 38,315.88 and 19,389.42 is: 29,007.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,611.30 : 38,315.88 = 19,389.42 : x
  2. Step 2: Convert to fraction form
    25,611.30/38,315.88 = 19,389.42/x
  3. Step 3: Cross multiply
    25,611.30x = 38,315.88 × 19,389.42
  4. Step 4: Simplify right side
    25,611.30x = 742,922,689.99
  5. Step 5: Solve for x
    x = 742,922,689.99/25,611.30
  6. Step 6: Final answer
    x = 29,007.61

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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.