Home / 27,689.84-38,198.67-18,125.51

Finding the Fourth Proportional to 27,689.84, 38,198.67 and 18,125.51

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Solution

The fourth proportional to 27,689.84, 38,198.67 and 18,125.51 is: 25,004.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,689.84 : 38,198.67 = 18,125.51 : x
  2. Step 2: Convert to fraction form
    27,689.84/38,198.67 = 18,125.51/x
  3. Step 3: Cross multiply
    27,689.84x = 38,198.67 × 18,125.51
  4. Step 4: Simplify right side
    27,689.84x = 692,370,184.08
  5. Step 5: Solve for x
    x = 692,370,184.08/27,689.84
  6. Step 6: Final answer
    x = 25,004.49

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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.