Home / 27,650.64-38,145.75-18,694.89

Finding the Fourth Proportional to 27,650.64, 38,145.75 and 18,694.89

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Solution

The fourth proportional to 27,650.64, 38,145.75 and 18,694.89 is: 25,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,650.64 : 38,145.75 = 18,694.89 : x
  2. Step 2: Convert to fraction form
    27,650.64/38,145.75 = 18,694.89/x
  3. Step 3: Cross multiply
    27,650.64x = 38,145.75 × 18,694.89
  4. Step 4: Simplify right side
    27,650.64x = 713,130,600.22
  5. Step 5: Solve for x
    x = 713,130,600.22/27,650.64
  6. Step 6: Final answer
    x = 25,790.74

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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.