Home / 19,990.35-27,586.79-11,037.87

Finding the Fourth Proportional to 19,990.35, 27,586.79 and 11,037.87

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Solution

The fourth proportional to 19,990.35, 27,586.79 and 11,037.87 is: 15,232.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.35 : 27,586.79 = 11,037.87 : x
  2. Step 2: Convert to fraction form
    19,990.35/27,586.79 = 11,037.87/x
  3. Step 3: Cross multiply
    19,990.35x = 27,586.79 × 11,037.87
  4. Step 4: Simplify right side
    19,990.35x = 304,499,401.74
  5. Step 5: Solve for x
    x = 304,499,401.74/19,990.35
  6. Step 6: Final answer
    x = 15,232.32

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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.