Home / 20,804.56-31,214.63-10,803.06

Finding the Fourth Proportional to 20,804.56, 31,214.63 and 10,803.06

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Solution

The fourth proportional to 20,804.56, 31,214.63 and 10,803.06 is: 16,208.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804.56 : 31,214.63 = 10,803.06 : x
  2. Step 2: Convert to fraction form
    20,804.56/31,214.63 = 10,803.06/x
  3. Step 3: Cross multiply
    20,804.56x = 31,214.63 × 10,803.06
  4. Step 4: Simplify right side
    20,804.56x = 337,213,310.68
  5. Step 5: Solve for x
    x = 337,213,310.68/20,804.56
  6. Step 6: Final answer
    x = 16,208.63

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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.