Home / 18,753.93-25,835.36-15,769.89

Finding the Fourth Proportional to 18,753.93, 25,835.36 and 15,769.89

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Solution

The fourth proportional to 18,753.93, 25,835.36 and 15,769.89 is: 21,724.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.93 : 25,835.36 = 15,769.89 : x
  2. Step 2: Convert to fraction form
    18,753.93/25,835.36 = 15,769.89/x
  3. Step 3: Cross multiply
    18,753.93x = 25,835.36 × 15,769.89
  4. Step 4: Simplify right side
    18,753.93x = 407,420,706.46
  5. Step 5: Solve for x
    x = 407,420,706.46/18,753.93
  6. Step 6: Final answer
    x = 21,724.55

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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.