Home / 27,950.32-38,571.93-15,203.78

Finding the Fourth Proportional to 27,950.32, 38,571.93 and 15,203.78

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Solution

The fourth proportional to 27,950.32, 38,571.93 and 15,203.78 is: 20,981.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,950.32 : 38,571.93 = 15,203.78 : x
  2. Step 2: Convert to fraction form
    27,950.32/38,571.93 = 15,203.78/x
  3. Step 3: Cross multiply
    27,950.32x = 38,571.93 × 15,203.78
  4. Step 4: Simplify right side
    27,950.32x = 586,439,137.90
  5. Step 5: Solve for x
    x = 586,439,137.90/27,950.32
  6. Step 6: Final answer
    x = 20,981.48

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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.