Home / 19,971.28-27,551.82-12,008.80

Finding the Fourth Proportional to 19,971.28, 27,551.82 and 12,008.80

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Solution

The fourth proportional to 19,971.28, 27,551.82 and 12,008.80 is: 16,567.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.28 : 27,551.82 = 12,008.80 : x
  2. Step 2: Convert to fraction form
    19,971.28/27,551.82 = 12,008.80/x
  3. Step 3: Cross multiply
    19,971.28x = 27,551.82 × 12,008.80
  4. Step 4: Simplify right side
    19,971.28x = 330,864,296.02
  5. Step 5: Solve for x
    x = 330,864,296.02/19,971.28
  6. Step 6: Final answer
    x = 16,567.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.