Home / 20,320.44-28,054.26-12,773.16

Finding the Fourth Proportional to 20,320.44, 28,054.26 and 12,773.16

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Solution

The fourth proportional to 20,320.44, 28,054.26 and 12,773.16 is: 17,634.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320.44 : 28,054.26 = 12,773.16 : x
  2. Step 2: Convert to fraction form
    20,320.44/28,054.26 = 12,773.16/x
  3. Step 3: Cross multiply
    20,320.44x = 28,054.26 × 12,773.16
  4. Step 4: Simplify right side
    20,320.44x = 358,341,551.66
  5. Step 5: Solve for x
    x = 358,341,551.66/20,320.44
  6. Step 6: Final answer
    x = 17,634.54

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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.