Home / 20,714.02-31,056.38-6,669.70

Finding the Fourth Proportional to 20,714.02, 31,056.38 and 6,669.70

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Solution

The fourth proportional to 20,714.02, 31,056.38 and 6,669.70 is: 9,999.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.02 : 31,056.38 = 6,669.70 : x
  2. Step 2: Convert to fraction form
    20,714.02/31,056.38 = 6,669.70/x
  3. Step 3: Cross multiply
    20,714.02x = 31,056.38 × 6,669.70
  4. Step 4: Simplify right side
    20,714.02x = 207,136,737.69
  5. Step 5: Solve for x
    x = 207,136,737.69/20,714.02
  6. Step 6: Final answer
    x = 9,999.83

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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.