Home / 20,197.10-30,259.20-17,864.30

Finding the Fourth Proportional to 20,197.10, 30,259.20 and 17,864.30

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Solution

The fourth proportional to 20,197.10, 30,259.20 and 17,864.30 is: 26,764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.10 : 30,259.20 = 17,864.30 : x
  2. Step 2: Convert to fraction form
    20,197.10/30,259.20 = 17,864.30/x
  3. Step 3: Cross multiply
    20,197.10x = 30,259.20 × 17,864.30
  4. Step 4: Simplify right side
    20,197.10x = 540,559,426.56
  5. Step 5: Solve for x
    x = 540,559,426.56/20,197.10
  6. Step 6: Final answer
    x = 26,764.21

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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.