Home / 34,621.60-51,932.40-21,431.20

Finding the Fourth Proportional to 34,621.60, 51,932.40 and 21,431.20

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Solution

The fourth proportional to 34,621.60, 51,932.40 and 21,431.20 is: 32,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,621.60 : 51,932.40 = 21,431.20 : x
  2. Step 2: Convert to fraction form
    34,621.60/51,932.40 = 21,431.20/x
  3. Step 3: Cross multiply
    34,621.60x = 51,932.40 × 21,431.20
  4. Step 4: Simplify right side
    34,621.60x = 1,112,973,650.88
  5. Step 5: Solve for x
    x = 1,112,973,650.88/34,621.60
  6. Step 6: Final answer
    x = 32,146.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.