Home / 20,240.48-27,915.36-16,997.80

Finding the Fourth Proportional to 20,240.48, 27,915.36 and 16,997.80

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Solution

The fourth proportional to 20,240.48, 27,915.36 and 16,997.80 is: 23,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.48 : 27,915.36 = 16,997.80 : x
  2. Step 2: Convert to fraction form
    20,240.48/27,915.36 = 16,997.80/x
  3. Step 3: Cross multiply
    20,240.48x = 27,915.36 × 16,997.80
  4. Step 4: Simplify right side
    20,240.48x = 474,499,706.21
  5. Step 5: Solve for x
    x = 474,499,706.21/20,240.48
  6. Step 6: Final answer
    x = 23,443.11

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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.