Home / 19,991.60-27,587.73-11,038.56

Finding the Fourth Proportional to 19,991.60, 27,587.73 and 11,038.56

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Solution

The fourth proportional to 19,991.60, 27,587.73 and 11,038.56 is: 15,232.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.60 : 27,587.73 = 11,038.56 : x
  2. Step 2: Convert to fraction form
    19,991.60/27,587.73 = 11,038.56/x
  3. Step 3: Cross multiply
    19,991.60x = 27,587.73 × 11,038.56
  4. Step 4: Simplify right side
    19,991.60x = 304,528,812.87
  5. Step 5: Solve for x
    x = 304,528,812.87/19,991.60
  6. Step 6: Final answer
    x = 15,232.84

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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.