Home / 20,583.88-28,421.75-15,796.24

Finding the Fourth Proportional to 20,583.88, 28,421.75 and 15,796.24

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Solution

The fourth proportional to 20,583.88, 28,421.75 and 15,796.24 is: 21,811.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.88 : 28,421.75 = 15,796.24 : x
  2. Step 2: Convert to fraction form
    20,583.88/28,421.75 = 15,796.24/x
  3. Step 3: Cross multiply
    20,583.88x = 28,421.75 × 15,796.24
  4. Step 4: Simplify right side
    20,583.88x = 448,956,784.22
  5. Step 5: Solve for x
    x = 448,956,784.22/20,583.88
  6. Step 6: Final answer
    x = 21,811.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.