Home / 20,134.60-30,172.20-14,599.60

Finding the Fourth Proportional to 20,134.60, 30,172.20 and 14,599.60

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Solution

The fourth proportional to 20,134.60, 30,172.20 and 14,599.60 is: 21,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.60 : 30,172.20 = 14,599.60 : x
  2. Step 2: Convert to fraction form
    20,134.60/30,172.20 = 14,599.60/x
  3. Step 3: Cross multiply
    20,134.60x = 30,172.20 × 14,599.60
  4. Step 4: Simplify right side
    20,134.60x = 440,502,051.12
  5. Step 5: Solve for x
    x = 440,502,051.12/20,134.60
  6. Step 6: Final answer
    x = 21,877.86

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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.