Home / 20,152.60-30,199.20-14,617.60

Finding the Fourth Proportional to 20,152.60, 30,199.20 and 14,617.60

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Solution

The fourth proportional to 20,152.60, 30,199.20 and 14,617.60 is: 21,904.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.60 : 30,199.20 = 14,617.60 : x
  2. Step 2: Convert to fraction form
    20,152.60/30,199.20 = 14,617.60/x
  3. Step 3: Cross multiply
    20,152.60x = 30,199.20 × 14,617.60
  4. Step 4: Simplify right side
    20,152.60x = 441,439,825.92
  5. Step 5: Solve for x
    x = 441,439,825.92/20,152.60
  6. Step 6: Final answer
    x = 21,904.86

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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.