Home / 27,965.63-38,593.38-15,390.38

Finding the Fourth Proportional to 27,965.63, 38,593.38 and 15,390.38

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Solution

The fourth proportional to 27,965.63, 38,593.38 and 15,390.38 is: 21,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,965.63 : 38,593.38 = 15,390.38 : x
  2. Step 2: Convert to fraction form
    27,965.63/38,593.38 = 15,390.38/x
  3. Step 3: Cross multiply
    27,965.63x = 38,593.38 × 15,390.38
  4. Step 4: Simplify right side
    27,965.63x = 593,966,590.72
  5. Step 5: Solve for x
    x = 593,966,590.72/27,965.63
  6. Step 6: Final answer
    x = 21,239.17

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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.