Home / 19,991.47-27,588.22-11,038.99

Finding the Fourth Proportional to 19,991.47, 27,588.22 and 11,038.99

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Solution

The fourth proportional to 19,991.47, 27,588.22 and 11,038.99 is: 15,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.47 : 27,588.22 = 11,038.99 : x
  2. Step 2: Convert to fraction form
    19,991.47/27,588.22 = 11,038.99/x
  3. Step 3: Cross multiply
    19,991.47x = 27,588.22 × 11,038.99
  4. Step 4: Simplify right side
    19,991.47x = 304,545,946.76
  5. Step 5: Solve for x
    x = 304,545,946.76/19,991.47
  6. Step 6: Final answer
    x = 15,233.80

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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.