Home / 21,717.20-32,527.20-18,801.20

Finding the Fourth Proportional to 21,717.20, 32,527.20 and 18,801.20

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Solution

The fourth proportional to 21,717.20, 32,527.20 and 18,801.20 is: 28,159.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,717.20 : 32,527.20 = 18,801.20 : x
  2. Step 2: Convert to fraction form
    21,717.20/32,527.20 = 18,801.20/x
  3. Step 3: Cross multiply
    21,717.20x = 32,527.20 × 18,801.20
  4. Step 4: Simplify right side
    21,717.20x = 611,550,392.64
  5. Step 5: Solve for x
    x = 611,550,392.64/21,717.20
  6. Step 6: Final answer
    x = 28,159.73

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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.