Home / 19,991.17-27,588.90-11,038.65

Finding the Fourth Proportional to 19,991.17, 27,588.90 and 11,038.65

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Solution

The fourth proportional to 19,991.17, 27,588.90 and 11,038.65 is: 15,233.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.17 : 27,588.90 = 11,038.65 : x
  2. Step 2: Convert to fraction form
    19,991.17/27,588.90 = 11,038.65/x
  3. Step 3: Cross multiply
    19,991.17x = 27,588.90 × 11,038.65
  4. Step 4: Simplify right side
    19,991.17x = 304,544,210.99
  5. Step 5: Solve for x
    x = 304,544,210.99/19,991.17
  6. Step 6: Final answer
    x = 15,233.94

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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.