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Finding the Fourth Proportional to 21,486.56, 32,231.04 and 5,903.84

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Solution

The fourth proportional to 21,486.56, 32,231.04 and 5,903.84 is: 8,856.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.56 : 32,231.04 = 5,903.84 : x
  2. Step 2: Convert to fraction form
    21,486.56/32,231.04 = 5,903.84/x
  3. Step 3: Cross multiply
    21,486.56x = 32,231.04 × 5,903.84
  4. Step 4: Simplify right side
    21,486.56x = 190,286,903.19
  5. Step 5: Solve for x
    x = 190,286,903.19/21,486.56
  6. Step 6: Final answer
    x = 8,856.09

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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.