Home / 19,640.44-27,103.98-18,152.20

Finding the Fourth Proportional to 19,640.44, 27,103.98 and 18,152.20

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Solution

The fourth proportional to 19,640.44, 27,103.98 and 18,152.20 is: 25,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.44 : 27,103.98 = 18,152.20 : x
  2. Step 2: Convert to fraction form
    19,640.44/27,103.98 = 18,152.20/x
  3. Step 3: Cross multiply
    19,640.44x = 27,103.98 × 18,152.20
  4. Step 4: Simplify right side
    19,640.44x = 491,996,865.76
  5. Step 5: Solve for x
    x = 491,996,865.76/19,640.44
  6. Step 6: Final answer
    x = 25,050.20

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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.