Home / 20,802.55-31,211.62-10,801.06

Finding the Fourth Proportional to 20,802.55, 31,211.62 and 10,801.06

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Solution

The fourth proportional to 20,802.55, 31,211.62 and 10,801.06 is: 16,205.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.55 : 31,211.62 = 10,801.06 : x
  2. Step 2: Convert to fraction form
    20,802.55/31,211.62 = 10,801.06/x
  3. Step 3: Cross multiply
    20,802.55x = 31,211.62 × 10,801.06
  4. Step 4: Simplify right side
    20,802.55x = 337,118,464.76
  5. Step 5: Solve for x
    x = 337,118,464.76/20,802.55
  6. Step 6: Final answer
    x = 16,205.63

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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.