Home / 28,247.36-38,982.74-16,311.80

Finding the Fourth Proportional to 28,247.36, 38,982.74 and 16,311.80

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Solution

The fourth proportional to 28,247.36, 38,982.74 and 16,311.80 is: 22,511.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.36 : 38,982.74 = 16,311.80 : x
  2. Step 2: Convert to fraction form
    28,247.36/38,982.74 = 16,311.80/x
  3. Step 3: Cross multiply
    28,247.36x = 38,982.74 × 16,311.80
  4. Step 4: Simplify right side
    28,247.36x = 635,878,674.23
  5. Step 5: Solve for x
    x = 635,878,674.23/28,247.36
  6. Step 6: Final answer
    x = 22,511.09

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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.