Home / 20,857.66-31,208.01-14,629.83

Finding the Fourth Proportional to 20,857.66, 31,208.01 and 14,629.83

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Solution

The fourth proportional to 20,857.66, 31,208.01 and 14,629.83 is: 21,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857.66 : 31,208.01 = 14,629.83 : x
  2. Step 2: Convert to fraction form
    20,857.66/31,208.01 = 14,629.83/x
  3. Step 3: Cross multiply
    20,857.66x = 31,208.01 × 14,629.83
  4. Step 4: Simplify right side
    20,857.66x = 456,567,880.94
  5. Step 5: Solve for x
    x = 456,567,880.94/20,857.66
  6. Step 6: Final answer
    x = 21,889.70

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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.