Home / 21,885.68-32,835.54-7,836.18

Finding the Fourth Proportional to 21,885.68, 32,835.54 and 7,836.18

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Solution

The fourth proportional to 21,885.68, 32,835.54 and 7,836.18 is: 11,756.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,885.68 : 32,835.54 = 7,836.18 : x
  2. Step 2: Convert to fraction form
    21,885.68/32,835.54 = 7,836.18/x
  3. Step 3: Cross multiply
    21,885.68x = 32,835.54 × 7,836.18
  4. Step 4: Simplify right side
    21,885.68x = 257,305,201.84
  5. Step 5: Solve for x
    x = 257,305,201.84/21,885.68
  6. Step 6: Final answer
    x = 11,756.78

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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.