Home / 25,864.40-38,792.48-11,815.67

Finding the Fourth Proportional to 25,864.40, 38,792.48 and 11,815.67

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Solution

The fourth proportional to 25,864.40, 38,792.48 and 11,815.67 is: 17,721.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,864.40 : 38,792.48 = 11,815.67 : x
  2. Step 2: Convert to fraction form
    25,864.40/38,792.48 = 11,815.67/x
  3. Step 3: Cross multiply
    25,864.40x = 38,792.48 × 11,815.67
  4. Step 4: Simplify right side
    25,864.40x = 458,359,180.06
  5. Step 5: Solve for x
    x = 458,359,180.06/25,864.40
  6. Step 6: Final answer
    x = 17,721.62

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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.