Home / 20,858.64-31,291.37-6,814.59

Finding the Fourth Proportional to 20,858.64, 31,291.37 and 6,814.59

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Solution

The fourth proportional to 20,858.64, 31,291.37 and 6,814.59 is: 10,223.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858.64 : 31,291.37 = 6,814.59 : x
  2. Step 2: Convert to fraction form
    20,858.64/31,291.37 = 6,814.59/x
  3. Step 3: Cross multiply
    20,858.64x = 31,291.37 × 6,814.59
  4. Step 4: Simplify right side
    20,858.64x = 213,237,857.09
  5. Step 5: Solve for x
    x = 213,237,857.09/20,858.64
  6. Step 6: Final answer
    x = 10,223.00

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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.