Home / 27,672.06-38,174.04-18,722.64

Finding the Fourth Proportional to 27,672.06, 38,174.04 and 18,722.64

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Solution

The fourth proportional to 27,672.06, 38,174.04 and 18,722.64 is: 25,828.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,672.06 : 38,174.04 = 18,722.64 : x
  2. Step 2: Convert to fraction form
    27,672.06/38,174.04 = 18,722.64/x
  3. Step 3: Cross multiply
    27,672.06x = 38,174.04 × 18,722.64
  4. Step 4: Simplify right side
    27,672.06x = 714,718,808.27
  5. Step 5: Solve for x
    x = 714,718,808.27/27,672.06
  6. Step 6: Final answer
    x = 25,828.17

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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.