Home / 21,730.20-32,546.70-17,842.20

Finding the Fourth Proportional to 21,730.20, 32,546.70 and 17,842.20

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Solution

The fourth proportional to 21,730.20, 32,546.70 and 17,842.20 is: 26,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,730.20 : 32,546.70 = 17,842.20 : x
  2. Step 2: Convert to fraction form
    21,730.20/32,546.70 = 17,842.20/x
  3. Step 3: Cross multiply
    21,730.20x = 32,546.70 × 17,842.20
  4. Step 4: Simplify right side
    21,730.20x = 580,704,730.74
  5. Step 5: Solve for x
    x = 580,704,730.74/21,730.20
  6. Step 6: Final answer
    x = 26,723.40

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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.