Home / 27,255.60-37,650.96-21,047.76

Finding the Fourth Proportional to 27,255.60, 37,650.96 and 21,047.76

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Solution

The fourth proportional to 27,255.60, 37,650.96 and 21,047.76 is: 29,075.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,255.60 : 37,650.96 = 21,047.76 : x
  2. Step 2: Convert to fraction form
    27,255.60/37,650.96 = 21,047.76/x
  3. Step 3: Cross multiply
    27,255.60x = 37,650.96 × 21,047.76
  4. Step 4: Simplify right side
    27,255.60x = 792,468,369.85
  5. Step 5: Solve for x
    x = 792,468,369.85/27,255.60
  6. Step 6: Final answer
    x = 29,075.43

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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.