Home / 25,378.86-38,111.85-15,575.70

Finding the Fourth Proportional to 25,378.86, 38,111.85 and 15,575.70

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Solution

The fourth proportional to 25,378.86, 38,111.85 and 15,575.70 is: 23,390.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,378.86 : 38,111.85 = 15,575.70 : x
  2. Step 2: Convert to fraction form
    25,378.86/38,111.85 = 15,575.70/x
  3. Step 3: Cross multiply
    25,378.86x = 38,111.85 × 15,575.70
  4. Step 4: Simplify right side
    25,378.86x = 593,618,742.05
  5. Step 5: Solve for x
    x = 593,618,742.05/25,378.86
  6. Step 6: Final answer
    x = 23,390.28

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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.