Home / 19,520.66-29,287.78-14,188.84

Finding the Fourth Proportional to 19,520.66, 29,287.78 and 14,188.84

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Solution

The fourth proportional to 19,520.66, 29,287.78 and 14,188.84 is: 21,288.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.66 : 29,287.78 = 14,188.84 : x
  2. Step 2: Convert to fraction form
    19,520.66/29,287.78 = 14,188.84/x
  3. Step 3: Cross multiply
    19,520.66x = 29,287.78 × 14,188.84
  4. Step 4: Simplify right side
    19,520.66x = 415,559,515.68
  5. Step 5: Solve for x
    x = 415,559,515.68/19,520.66
  6. Step 6: Final answer
    x = 21,288.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.