Home / 19,990.59-27,586.36-11,037.56

Finding the Fourth Proportional to 19,990.59, 27,586.36 and 11,037.56

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Solution

The fourth proportional to 19,990.59, 27,586.36 and 11,037.56 is: 15,231.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.59 : 27,586.36 = 11,037.56 : x
  2. Step 2: Convert to fraction form
    19,990.59/27,586.36 = 11,037.56/x
  3. Step 3: Cross multiply
    19,990.59x = 27,586.36 × 11,037.56
  4. Step 4: Simplify right side
    19,990.59x = 304,486,048.49
  5. Step 5: Solve for x
    x = 304,486,048.49/19,990.59
  6. Step 6: Final answer
    x = 15,231.47

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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.