Home / 25,869.76-35,706.72-15,928

Finding the Fourth Proportional to 25,869.76, 35,706.72 and 15,928

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Solution

The fourth proportional to 25,869.76, 35,706.72 and 15,928 is: 21,984.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,869.76 : 35,706.72 = 15,928 : x
  2. Step 2: Convert to fraction form
    25,869.76/35,706.72 = 15,928/x
  3. Step 3: Cross multiply
    25,869.76x = 35,706.72 × 15,928
  4. Step 4: Simplify right side
    25,869.76x = 568,736,636.16
  5. Step 5: Solve for x
    x = 568,736,636.16/25,869.76
  6. Step 6: Final answer
    x = 21,984.61

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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.