Home / 28,853.28-39,816.72-16,279.20

Finding the Fourth Proportional to 28,853.28, 39,816.72 and 16,279.20

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Solution

The fourth proportional to 28,853.28, 39,816.72 and 16,279.20 is: 22,464.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,853.28 : 39,816.72 = 16,279.20 : x
  2. Step 2: Convert to fraction form
    28,853.28/39,816.72 = 16,279.20/x
  3. Step 3: Cross multiply
    28,853.28x = 39,816.72 × 16,279.20
  4. Step 4: Simplify right side
    28,853.28x = 648,184,348.22
  5. Step 5: Solve for x
    x = 648,184,348.22/28,853.28
  6. Step 6: Final answer
    x = 22,464.84

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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.