Home / 20,701.65-31,056.53-6,665.37

Finding the Fourth Proportional to 20,701.65, 31,056.53 and 6,665.37

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Solution

The fourth proportional to 20,701.65, 31,056.53 and 6,665.37 is: 9,999.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.65 : 31,056.53 = 6,665.37 : x
  2. Step 2: Convert to fraction form
    20,701.65/31,056.53 = 6,665.37/x
  3. Step 3: Cross multiply
    20,701.65x = 31,056.53 × 6,665.37
  4. Step 4: Simplify right side
    20,701.65x = 207,003,263.37
  5. Step 5: Solve for x
    x = 207,003,263.37/20,701.65
  6. Step 6: Final answer
    x = 9,999.36

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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.