Home / 19,990.10-27,586.45-11,037.62

Finding the Fourth Proportional to 19,990.10, 27,586.45 and 11,037.62

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Solution

The fourth proportional to 19,990.10, 27,586.45 and 11,037.62 is: 15,231.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.10 : 27,586.45 = 11,037.62 : x
  2. Step 2: Convert to fraction form
    19,990.10/27,586.45 = 11,037.62/x
  3. Step 3: Cross multiply
    19,990.10x = 27,586.45 × 11,037.62
  4. Step 4: Simplify right side
    19,990.10x = 304,488,793.62
  5. Step 5: Solve for x
    x = 304,488,793.62/19,990.10
  6. Step 6: Final answer
    x = 15,231.98

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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.