Home / 25,678.62-38,516.45-9,880.52

Finding the Fourth Proportional to 25,678.62, 38,516.45 and 9,880.52

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Solution

The fourth proportional to 25,678.62, 38,516.45 and 9,880.52 is: 14,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,678.62 : 38,516.45 = 9,880.52 : x
  2. Step 2: Convert to fraction form
    25,678.62/38,516.45 = 9,880.52/x
  3. Step 3: Cross multiply
    25,678.62x = 38,516.45 × 9,880.52
  4. Step 4: Simplify right side
    25,678.62x = 380,562,312.57
  5. Step 5: Solve for x
    x = 380,562,312.57/25,678.62
  6. Step 6: Final answer
    x = 14,820.20

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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.