Home / 21,769.91-30,014.30-14,099.54

Finding the Fourth Proportional to 21,769.91, 30,014.30 and 14,099.54

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Solution

The fourth proportional to 21,769.91, 30,014.30 and 14,099.54 is: 19,439.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,769.91 : 30,014.30 = 14,099.54 : x
  2. Step 2: Convert to fraction form
    21,769.91/30,014.30 = 14,099.54/x
  3. Step 3: Cross multiply
    21,769.91x = 30,014.30 × 14,099.54
  4. Step 4: Simplify right side
    21,769.91x = 423,187,882.54
  5. Step 5: Solve for x
    x = 423,187,882.54/21,769.91
  6. Step 6: Final answer
    x = 19,439.12

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1.5x scale

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.