Home / 21,134.01-31,700.19-8,650.44

Finding the Fourth Proportional to 21,134.01, 31,700.19 and 8,650.44

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Solution

The fourth proportional to 21,134.01, 31,700.19 and 8,650.44 is: 12,975.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.01 : 31,700.19 = 8,650.44 : x
  2. Step 2: Convert to fraction form
    21,134.01/31,700.19 = 8,650.44/x
  3. Step 3: Cross multiply
    21,134.01x = 31,700.19 × 8,650.44
  4. Step 4: Simplify right side
    21,134.01x = 274,220,591.58
  5. Step 5: Solve for x
    x = 274,220,591.58/21,134.01
  6. Step 6: Final answer
    x = 12,975.32

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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.