Home / 21,828.55-32,748.86-8,690.14

Finding the Fourth Proportional to 21,828.55, 32,748.86 and 8,690.14

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Solution

The fourth proportional to 21,828.55, 32,748.86 and 8,690.14 is: 13,037.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,828.55 : 32,748.86 = 8,690.14 : x
  2. Step 2: Convert to fraction form
    21,828.55/32,748.86 = 8,690.14/x
  3. Step 3: Cross multiply
    21,828.55x = 32,748.86 × 8,690.14
  4. Step 4: Simplify right side
    21,828.55x = 284,592,178.24
  5. Step 5: Solve for x
    x = 284,592,178.24/21,828.55
  6. Step 6: Final answer
    x = 13,037.61

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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.