Home / 20,802.43-31,211.44-10,800.93

Finding the Fourth Proportional to 20,802.43, 31,211.44 and 10,800.93

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Solution

The fourth proportional to 20,802.43, 31,211.44 and 10,800.93 is: 16,205.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.43 : 31,211.44 = 10,800.93 : x
  2. Step 2: Convert to fraction form
    20,802.43/31,211.44 = 10,800.93/x
  3. Step 3: Cross multiply
    20,802.43x = 31,211.44 × 10,800.93
  4. Step 4: Simplify right side
    20,802.43x = 337,112,531.39
  5. Step 5: Solve for x
    x = 337,112,531.39/20,802.43
  6. Step 6: Final answer
    x = 16,205.44

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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.