Home / 39,461.44-54,456.46-21,556.45

Finding the Fourth Proportional to 39,461.44, 54,456.46 and 21,556.45

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Solution

The fourth proportional to 39,461.44, 54,456.46 and 21,556.45 is: 29,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,461.44 : 54,456.46 = 21,556.45 : x
  2. Step 2: Convert to fraction form
    39,461.44/54,456.46 = 21,556.45/x
  3. Step 3: Cross multiply
    39,461.44x = 54,456.46 × 21,556.45
  4. Step 4: Simplify right side
    39,461.44x = 1,173,887,957.17
  5. Step 5: Solve for x
    x = 1,173,887,957.17/39,461.44
  6. Step 6: Final answer
    x = 29,747.72

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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.