Home / 28,722.58-39,635.13-16,149.22

Finding the Fourth Proportional to 28,722.58, 39,635.13 and 16,149.22

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Solution

The fourth proportional to 28,722.58, 39,635.13 and 16,149.22 is: 22,284.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.58 : 39,635.13 = 16,149.22 : x
  2. Step 2: Convert to fraction form
    28,722.58/39,635.13 = 16,149.22/x
  3. Step 3: Cross multiply
    28,722.58x = 39,635.13 × 16,149.22
  4. Step 4: Simplify right side
    28,722.58x = 640,076,434.10
  5. Step 5: Solve for x
    x = 640,076,434.10/28,722.58
  6. Step 6: Final answer
    x = 22,284.78

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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.