Home / 39,461.28-54,456.96-21,556.44

Finding the Fourth Proportional to 39,461.28, 54,456.96 and 21,556.44

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Solution

The fourth proportional to 39,461.28, 54,456.96 and 21,556.44 is: 29,748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,461.28 : 54,456.96 = 21,556.44 : x
  2. Step 2: Convert to fraction form
    39,461.28/54,456.96 = 21,556.44/x
  3. Step 3: Cross multiply
    39,461.28x = 54,456.96 × 21,556.44
  4. Step 4: Simplify right side
    39,461.28x = 1,173,898,190.82
  5. Step 5: Solve for x
    x = 1,173,898,190.82/39,461.28
  6. Step 6: Final answer
    x = 29,748.10

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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.