Home / 27,989.36-38,622.26-16,657.28

Finding the Fourth Proportional to 27,989.36, 38,622.26 and 16,657.28

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Solution

The fourth proportional to 27,989.36, 38,622.26 and 16,657.28 is: 22,985.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,989.36 : 38,622.26 = 16,657.28 : x
  2. Step 2: Convert to fraction form
    27,989.36/38,622.26 = 16,657.28/x
  3. Step 3: Cross multiply
    27,989.36x = 38,622.26 × 16,657.28
  4. Step 4: Simplify right side
    27,989.36x = 643,341,799.05
  5. Step 5: Solve for x
    x = 643,341,799.05/27,989.36
  6. Step 6: Final answer
    x = 22,985.23

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Similar ratio
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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.