Home / 20,190.06-30,225.90-14,165.28

Finding the Fourth Proportional to 20,190.06, 30,225.90 and 14,165.28

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Solution

The fourth proportional to 20,190.06, 30,225.90 and 14,165.28 is: 21,206.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.06 : 30,225.90 = 14,165.28 : x
  2. Step 2: Convert to fraction form
    20,190.06/30,225.90 = 14,165.28/x
  3. Step 3: Cross multiply
    20,190.06x = 30,225.90 × 14,165.28
  4. Step 4: Simplify right side
    20,190.06x = 428,158,336.75
  5. Step 5: Solve for x
    x = 428,158,336.75/20,190.06
  6. Step 6: Final answer
    x = 21,206.39

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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.