Home / 20,038.62-27,653.97-11,543.51

Finding the Fourth Proportional to 20,038.62, 27,653.97 and 11,543.51

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Solution

The fourth proportional to 20,038.62, 27,653.97 and 11,543.51 is: 15,930.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,038.62 : 27,653.97 = 11,543.51 : x
  2. Step 2: Convert to fraction form
    20,038.62/27,653.97 = 11,543.51/x
  3. Step 3: Cross multiply
    20,038.62x = 27,653.97 × 11,543.51
  4. Step 4: Simplify right side
    20,038.62x = 319,223,991.66
  5. Step 5: Solve for x
    x = 319,223,991.66/20,038.62
  6. Step 6: Final answer
    x = 15,930.43

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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.