Home / 25,602.87-38,421.72-15,711.96

Finding the Fourth Proportional to 25,602.87, 38,421.72 and 15,711.96

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Solution

The fourth proportional to 25,602.87, 38,421.72 and 15,711.96 is: 23,578.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,602.87 : 38,421.72 = 15,711.96 : x
  2. Step 2: Convert to fraction form
    25,602.87/38,421.72 = 15,711.96/x
  3. Step 3: Cross multiply
    25,602.87x = 38,421.72 × 15,711.96
  4. Step 4: Simplify right side
    25,602.87x = 603,680,527.77
  5. Step 5: Solve for x
    x = 603,680,527.77/25,602.87
  6. Step 6: Final answer
    x = 23,578.63

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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.