Home / 21,913.06-32,885.43-8,769.10

Finding the Fourth Proportional to 21,913.06, 32,885.43 and 8,769.10

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Solution

The fourth proportional to 21,913.06, 32,885.43 and 8,769.10 is: 13,159.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.06 : 32,885.43 = 8,769.10 : x
  2. Step 2: Convert to fraction form
    21,913.06/32,885.43 = 8,769.10/x
  3. Step 3: Cross multiply
    21,913.06x = 32,885.43 × 8,769.10
  4. Step 4: Simplify right side
    21,913.06x = 288,375,624.21
  5. Step 5: Solve for x
    x = 288,375,624.21/21,913.06
  6. Step 6: Final answer
    x = 13,159.99

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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.