Home / 21,014.53-31,521.90-6,223.73

Finding the Fourth Proportional to 21,014.53, 31,521.90 and 6,223.73

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Solution

The fourth proportional to 21,014.53, 31,521.90 and 6,223.73 is: 9,335.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.53 : 31,521.90 = 6,223.73 : x
  2. Step 2: Convert to fraction form
    21,014.53/31,521.90 = 6,223.73/x
  3. Step 3: Cross multiply
    21,014.53x = 31,521.90 × 6,223.73
  4. Step 4: Simplify right side
    21,014.53x = 196,183,820.22
  5. Step 5: Solve for x
    x = 196,183,820.22/21,014.53
  6. Step 6: Final answer
    x = 9,335.63

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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.