Home / 20,724.40-28,605.86-14,773.33

Finding the Fourth Proportional to 20,724.40, 28,605.86 and 14,773.33

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Solution

The fourth proportional to 20,724.40, 28,605.86 and 14,773.33 is: 20,391.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.40 : 28,605.86 = 14,773.33 : x
  2. Step 2: Convert to fraction form
    20,724.40/28,605.86 = 14,773.33/x
  3. Step 3: Cross multiply
    20,724.40x = 28,605.86 × 14,773.33
  4. Step 4: Simplify right side
    20,724.40x = 422,603,809.71
  5. Step 5: Solve for x
    x = 422,603,809.71/20,724.40
  6. Step 6: Final answer
    x = 20,391.61

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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.