Home / 20,893.24-28,833.14-11,461.76

Finding the Fourth Proportional to 20,893.24, 28,833.14 and 11,461.76

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Solution

The fourth proportional to 20,893.24, 28,833.14 and 11,461.76 is: 15,817.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.24 : 28,833.14 = 11,461.76 : x
  2. Step 2: Convert to fraction form
    20,893.24/28,833.14 = 11,461.76/x
  3. Step 3: Cross multiply
    20,893.24x = 28,833.14 × 11,461.76
  4. Step 4: Simplify right side
    20,893.24x = 330,478,530.73
  5. Step 5: Solve for x
    x = 330,478,530.73/20,893.24
  6. Step 6: Final answer
    x = 15,817.49

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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.