Home / 19,991.16-27,588.15-11,038.13

Finding the Fourth Proportional to 19,991.16, 27,588.15 and 11,038.13

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Solution

The fourth proportional to 19,991.16, 27,588.15 and 11,038.13 is: 15,232.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.16 : 27,588.15 = 11,038.13 : x
  2. Step 2: Convert to fraction form
    19,991.16/27,588.15 = 11,038.13/x
  3. Step 3: Cross multiply
    19,991.16x = 27,588.15 × 11,038.13
  4. Step 4: Simplify right side
    19,991.16x = 304,521,586.16
  5. Step 5: Solve for x
    x = 304,521,586.16/19,991.16
  6. Step 6: Final answer
    x = 15,232.81

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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.