Home / 19,990.50-27,586.52-11,037.80

Finding the Fourth Proportional to 19,990.50, 27,586.52 and 11,037.80

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Solution

The fourth proportional to 19,990.50, 27,586.52 and 11,037.80 is: 15,231.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.50 : 27,586.52 = 11,037.80 : x
  2. Step 2: Convert to fraction form
    19,990.50/27,586.52 = 11,037.80/x
  3. Step 3: Cross multiply
    19,990.50x = 27,586.52 × 11,037.80
  4. Step 4: Simplify right side
    19,990.50x = 304,494,490.46
  5. Step 5: Solve for x
    x = 304,494,490.46/19,990.50
  6. Step 6: Final answer
    x = 15,231.96

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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.