Home / 25,611.45-38,315.82-19,389.42

Finding the Fourth Proportional to 25,611.45, 38,315.82 and 19,389.42

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Solution

The fourth proportional to 25,611.45, 38,315.82 and 19,389.42 is: 29,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,611.45 : 38,315.82 = 19,389.42 : x
  2. Step 2: Convert to fraction form
    25,611.45/38,315.82 = 19,389.42/x
  3. Step 3: Cross multiply
    25,611.45x = 38,315.82 × 19,389.42
  4. Step 4: Simplify right side
    25,611.45x = 742,921,526.62
  5. Step 5: Solve for x
    x = 742,921,526.62/25,611.45
  6. Step 6: Final answer
    x = 29,007.40

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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.