Home / 27,711.39-38,241.69-15,136.14

Finding the Fourth Proportional to 27,711.39, 38,241.69 and 15,136.14

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Solution

The fourth proportional to 27,711.39, 38,241.69 and 15,136.14 is: 20,887.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,711.39 : 38,241.69 = 15,136.14 : x
  2. Step 2: Convert to fraction form
    27,711.39/38,241.69 = 15,136.14/x
  3. Step 3: Cross multiply
    27,711.39x = 38,241.69 × 15,136.14
  4. Step 4: Simplify right side
    27,711.39x = 578,831,573.68
  5. Step 5: Solve for x
    x = 578,831,573.68/27,711.39
  6. Step 6: Final answer
    x = 20,887.86

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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.