Home / 20,174.92-27,838.72-11,220.64

Finding the Fourth Proportional to 20,174.92, 27,838.72 and 11,220.64

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Solution

The fourth proportional to 20,174.92, 27,838.72 and 11,220.64 is: 15,483.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174.92 : 27,838.72 = 11,220.64 : x
  2. Step 2: Convert to fraction form
    20,174.92/27,838.72 = 11,220.64/x
  3. Step 3: Cross multiply
    20,174.92x = 27,838.72 × 11,220.64
  4. Step 4: Simplify right side
    20,174.92x = 312,368,255.18
  5. Step 5: Solve for x
    x = 312,368,255.18/20,174.92
  6. Step 6: Final answer
    x = 15,483.00

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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.