Home / 21,234.24-31,851.60-6,443.04

Finding the Fourth Proportional to 21,234.24, 31,851.60 and 6,443.04

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Solution

The fourth proportional to 21,234.24, 31,851.60 and 6,443.04 is: 9,664.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.24 : 31,851.60 = 6,443.04 : x
  2. Step 2: Convert to fraction form
    21,234.24/31,851.60 = 6,443.04/x
  3. Step 3: Cross multiply
    21,234.24x = 31,851.60 × 6,443.04
  4. Step 4: Simplify right side
    21,234.24x = 205,221,132.86
  5. Step 5: Solve for x
    x = 205,221,132.86/21,234.24
  6. Step 6: Final answer
    x = 9,664.63

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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.