Home / 20,402.44-28,179.16-16,328.40

Finding the Fourth Proportional to 20,402.44, 28,179.16 and 16,328.40

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Solution

The fourth proportional to 20,402.44, 28,179.16 and 16,328.40 is: 22,552.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402.44 : 28,179.16 = 16,328.40 : x
  2. Step 2: Convert to fraction form
    20,402.44/28,179.16 = 16,328.40/x
  3. Step 3: Cross multiply
    20,402.44x = 28,179.16 × 16,328.40
  4. Step 4: Simplify right side
    20,402.44x = 460,120,596.14
  5. Step 5: Solve for x
    x = 460,120,596.14/20,402.44
  6. Step 6: Final answer
    x = 22,552.23

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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.