Home / 27,965.34-38,592.18-15,390

Finding the Fourth Proportional to 27,965.34, 38,592.18 and 15,390

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Solution

The fourth proportional to 27,965.34, 38,592.18 and 15,390 is: 21,238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,965.34 : 38,592.18 = 15,390 : x
  2. Step 2: Convert to fraction form
    27,965.34/38,592.18 = 15,390/x
  3. Step 3: Cross multiply
    27,965.34x = 38,592.18 × 15,390
  4. Step 4: Simplify right side
    27,965.34x = 593,933,650.20
  5. Step 5: Solve for x
    x = 593,933,650.20/27,965.34
  6. Step 6: Final answer
    x = 21,238.21

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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.