Home / 27,300.78-37,660.35-18,241.74

Finding the Fourth Proportional to 27,300.78, 37,660.35 and 18,241.74

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Solution

The fourth proportional to 27,300.78, 37,660.35 and 18,241.74 is: 25,163.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,300.78 : 37,660.35 = 18,241.74 : x
  2. Step 2: Convert to fraction form
    27,300.78/37,660.35 = 18,241.74/x
  3. Step 3: Cross multiply
    27,300.78x = 37,660.35 × 18,241.74
  4. Step 4: Simplify right side
    27,300.78x = 686,990,313.01
  5. Step 5: Solve for x
    x = 686,990,313.01/27,300.78
  6. Step 6: Final answer
    x = 25,163.76

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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.