Home / 25,311.69-34,929.81-13,981.64

Finding the Fourth Proportional to 25,311.69, 34,929.81 and 13,981.64

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Solution

The fourth proportional to 25,311.69, 34,929.81 and 13,981.64 is: 19,294.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,311.69 : 34,929.81 = 13,981.64 : x
  2. Step 2: Convert to fraction form
    25,311.69/34,929.81 = 13,981.64/x
  3. Step 3: Cross multiply
    25,311.69x = 34,929.81 × 13,981.64
  4. Step 4: Simplify right side
    25,311.69x = 488,375,854.04
  5. Step 5: Solve for x
    x = 488,375,854.04/25,311.69
  6. Step 6: Final answer
    x = 19,294.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.