Home / 20,356.92-28,074.60-14,690.16

Finding the Fourth Proportional to 20,356.92, 28,074.60 and 14,690.16

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Solution

The fourth proportional to 20,356.92, 28,074.60 and 14,690.16 is: 20,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.92 : 28,074.60 = 14,690.16 : x
  2. Step 2: Convert to fraction form
    20,356.92/28,074.60 = 14,690.16/x
  3. Step 3: Cross multiply
    20,356.92x = 28,074.60 × 14,690.16
  4. Step 4: Simplify right side
    20,356.92x = 412,420,365.94
  5. Step 5: Solve for x
    x = 412,420,365.94/20,356.92
  6. Step 6: Final answer
    x = 20,259.47

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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.