Home / 21,718.14-32,582-12,362.56

Finding the Fourth Proportional to 21,718.14, 32,582 and 12,362.56

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Solution

The fourth proportional to 21,718.14, 32,582 and 12,362.56 is: 18,546.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,718.14 : 32,582 = 12,362.56 : x
  2. Step 2: Convert to fraction form
    21,718.14/32,582 = 12,362.56/x
  3. Step 3: Cross multiply
    21,718.14x = 32,582 × 12,362.56
  4. Step 4: Simplify right side
    21,718.14x = 402,796,929.92
  5. Step 5: Solve for x
    x = 402,796,929.92/21,718.14
  6. Step 6: Final answer
    x = 18,546.57

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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.