Home / 21,719.80-32,596.12-15,891.44

Finding the Fourth Proportional to 21,719.80, 32,596.12 and 15,891.44

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Solution

The fourth proportional to 21,719.80, 32,596.12 and 15,891.44 is: 23,849.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,719.80 : 32,596.12 = 15,891.44 : x
  2. Step 2: Convert to fraction form
    21,719.80/32,596.12 = 15,891.44/x
  3. Step 3: Cross multiply
    21,719.80x = 32,596.12 × 15,891.44
  4. Step 4: Simplify right side
    21,719.80x = 517,999,285.21
  5. Step 5: Solve for x
    x = 517,999,285.21/21,719.80
  6. Step 6: Final answer
    x = 23,849.17

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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.