Home / 27,900.36-38,502.45-15,153.57

Finding the Fourth Proportional to 27,900.36, 38,502.45 and 15,153.57

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Solution

The fourth proportional to 27,900.36, 38,502.45 and 15,153.57 is: 20,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,900.36 : 38,502.45 = 15,153.57 : x
  2. Step 2: Convert to fraction form
    27,900.36/38,502.45 = 15,153.57/x
  3. Step 3: Cross multiply
    27,900.36x = 38,502.45 × 15,153.57
  4. Step 4: Simplify right side
    27,900.36x = 583,449,571.25
  5. Step 5: Solve for x
    x = 583,449,571.25/27,900.36
  6. Step 6: Final answer
    x = 20,911.90

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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.