Home / 20,724.90-28,606.55-14,773.83

Finding the Fourth Proportional to 20,724.90, 28,606.55 and 14,773.83

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Solution

The fourth proportional to 20,724.90, 28,606.55 and 14,773.83 is: 20,392.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.90 : 28,606.55 = 14,773.83 : x
  2. Step 2: Convert to fraction form
    20,724.90/28,606.55 = 14,773.83/x
  3. Step 3: Cross multiply
    20,724.90x = 28,606.55 × 14,773.83
  4. Step 4: Simplify right side
    20,724.90x = 422,628,232.72
  5. Step 5: Solve for x
    x = 422,628,232.72/20,724.90
  6. Step 6: Final answer
    x = 20,392.29

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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.