Home / 20,743.67-31,111.18-6,705.02

Finding the Fourth Proportional to 20,743.67, 31,111.18 and 6,705.02

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Solution

The fourth proportional to 20,743.67, 31,111.18 and 6,705.02 is: 10,056.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743.67 : 31,111.18 = 6,705.02 : x
  2. Step 2: Convert to fraction form
    20,743.67/31,111.18 = 6,705.02/x
  3. Step 3: Cross multiply
    20,743.67x = 31,111.18 × 6,705.02
  4. Step 4: Simplify right side
    20,743.67x = 208,601,084.12
  5. Step 5: Solve for x
    x = 208,601,084.12/20,743.67
  6. Step 6: Final answer
    x = 10,056.13

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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.