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Finding the Fourth Proportional to 21,889.84, 32,842.05 and 7,099.24

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Solution

The fourth proportional to 21,889.84, 32,842.05 and 7,099.24 is: 10,651.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,889.84 : 32,842.05 = 7,099.24 : x
  2. Step 2: Convert to fraction form
    21,889.84/32,842.05 = 7,099.24/x
  3. Step 3: Cross multiply
    21,889.84x = 32,842.05 × 7,099.24
  4. Step 4: Simplify right side
    21,889.84x = 233,153,595.04
  5. Step 5: Solve for x
    x = 233,153,595.04/21,889.84
  6. Step 6: Final answer
    x = 10,651.22

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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.