Home / 39,525.76-54,546.60-21,621.76

Finding the Fourth Proportional to 39,525.76, 54,546.60 and 21,621.76

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Solution

The fourth proportional to 39,525.76, 54,546.60 and 21,621.76 is: 29,838.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,525.76 : 54,546.60 = 21,621.76 : x
  2. Step 2: Convert to fraction form
    39,525.76/54,546.60 = 21,621.76/x
  3. Step 3: Cross multiply
    39,525.76x = 54,546.60 × 21,621.76
  4. Step 4: Simplify right side
    39,525.76x = 1,179,393,494.02
  5. Step 5: Solve for x
    x = 1,179,393,494.02/39,525.76
  6. Step 6: Final answer
    x = 29,838.60

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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.