Home / 21,340.20-32,010.30-7,490.60

Finding the Fourth Proportional to 21,340.20, 32,010.30 and 7,490.60

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Solution

The fourth proportional to 21,340.20, 32,010.30 and 7,490.60 is: 11,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340.20 : 32,010.30 = 7,490.60 : x
  2. Step 2: Convert to fraction form
    21,340.20/32,010.30 = 7,490.60/x
  3. Step 3: Cross multiply
    21,340.20x = 32,010.30 × 7,490.60
  4. Step 4: Simplify right side
    21,340.20x = 239,776,353.18
  5. Step 5: Solve for x
    x = 239,776,353.18/21,340.20
  6. Step 6: Final answer
    x = 11,235.90

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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.