Home / 40,010.40-59,929.20-21,520.80

Finding the Fourth Proportional to 40,010.40, 59,929.20 and 21,520.80

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Solution

The fourth proportional to 40,010.40, 59,929.20 and 21,520.80 is: 32,234.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,010.40 : 59,929.20 = 21,520.80 : x
  2. Step 2: Convert to fraction form
    40,010.40/59,929.20 = 21,520.80/x
  3. Step 3: Cross multiply
    40,010.40x = 59,929.20 × 21,520.80
  4. Step 4: Simplify right side
    40,010.40x = 1,289,724,327.36
  5. Step 5: Solve for x
    x = 1,289,724,327.36/40,010.40
  6. Step 6: Final answer
    x = 32,234.73

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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.