Home / 21,748.24-32,630.13-13,418.56

Finding the Fourth Proportional to 21,748.24, 32,630.13 and 13,418.56

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Solution

The fourth proportional to 21,748.24, 32,630.13 and 13,418.56 is: 20,132.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,748.24 : 32,630.13 = 13,418.56 : x
  2. Step 2: Convert to fraction form
    21,748.24/32,630.13 = 13,418.56/x
  3. Step 3: Cross multiply
    21,748.24x = 32,630.13 × 13,418.56
  4. Step 4: Simplify right side
    21,748.24x = 437,849,357.21
  5. Step 5: Solve for x
    x = 437,849,357.21/21,748.24
  6. Step 6: Final answer
    x = 20,132.63

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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.