Home / 15,639.42-23,455.89-5,771.96

Finding the Fourth Proportional to 15,639.42, 23,455.89 and 5,771.96

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Solution

The fourth proportional to 15,639.42, 23,455.89 and 5,771.96 is: 8,656.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.42 : 23,455.89 = 5,771.96 : x
  2. Step 2: Convert to fraction form
    15,639.42/23,455.89 = 5,771.96/x
  3. Step 3: Cross multiply
    15,639.42x = 23,455.89 × 5,771.96
  4. Step 4: Simplify right side
    15,639.42x = 135,386,341.56
  5. Step 5: Solve for x
    x = 135,386,341.56/15,639.42
  6. Step 6: Final answer
    x = 8,656.74

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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.