Home / 21,457.27-32,190.18-6,665.56

Finding the Fourth Proportional to 21,457.27, 32,190.18 and 6,665.56

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Solution

The fourth proportional to 21,457.27, 32,190.18 and 6,665.56 is: 9,999.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457.27 : 32,190.18 = 6,665.56 : x
  2. Step 2: Convert to fraction form
    21,457.27/32,190.18 = 6,665.56/x
  3. Step 3: Cross multiply
    21,457.27x = 32,190.18 × 6,665.56
  4. Step 4: Simplify right side
    21,457.27x = 214,565,470.73
  5. Step 5: Solve for x
    x = 214,565,470.73/21,457.27
  6. Step 6: Final answer
    x = 9,999.66

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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.