Home / 21,486.26-32,228.08-12,776.60

Finding the Fourth Proportional to 21,486.26, 32,228.08 and 12,776.60

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Solution

The fourth proportional to 21,486.26, 32,228.08 and 12,776.60 is: 19,164.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.26 : 32,228.08 = 12,776.60 : x
  2. Step 2: Convert to fraction form
    21,486.26/32,228.08 = 12,776.60/x
  3. Step 3: Cross multiply
    21,486.26x = 32,228.08 × 12,776.60
  4. Step 4: Simplify right side
    21,486.26x = 411,765,286.93
  5. Step 5: Solve for x
    x = 411,765,286.93/21,486.26
  6. Step 6: Final answer
    x = 19,164.12

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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.