Home / 20,877.44-31,298.56-14,287.36

Finding the Fourth Proportional to 20,877.44, 31,298.56 and 14,287.36

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Solution

The fourth proportional to 20,877.44, 31,298.56 and 14,287.36 is: 21,419.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877.44 : 31,298.56 = 14,287.36 : x
  2. Step 2: Convert to fraction form
    20,877.44/31,298.56 = 14,287.36/x
  3. Step 3: Cross multiply
    20,877.44x = 31,298.56 × 14,287.36
  4. Step 4: Simplify right side
    20,877.44x = 447,173,794.20
  5. Step 5: Solve for x
    x = 447,173,794.20/20,877.44
  6. Step 6: Final answer
    x = 21,419.00

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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.