Home / 19,990.70-27,586.44-11,038.01

Finding the Fourth Proportional to 19,990.70, 27,586.44 and 11,038.01

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Solution

The fourth proportional to 19,990.70, 27,586.44 and 11,038.01 is: 15,232.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.70 : 27,586.44 = 11,038.01 : x
  2. Step 2: Convert to fraction form
    19,990.70/27,586.44 = 11,038.01/x
  3. Step 3: Cross multiply
    19,990.70x = 27,586.44 × 11,038.01
  4. Step 4: Simplify right side
    19,990.70x = 304,499,400.58
  5. Step 5: Solve for x
    x = 304,499,400.58/19,990.70
  6. Step 6: Final answer
    x = 15,232.05

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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.