Home / 39,461.47-54,456.13-21,556.01

Finding the Fourth Proportional to 39,461.47, 54,456.13 and 21,556.01

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Solution

The fourth proportional to 39,461.47, 54,456.13 and 21,556.01 is: 29,746.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,461.47 : 54,456.13 = 21,556.01 : x
  2. Step 2: Convert to fraction form
    39,461.47/54,456.13 = 21,556.01/x
  3. Step 3: Cross multiply
    39,461.47x = 54,456.13 × 21,556.01
  4. Step 4: Simplify right side
    39,461.47x = 1,173,856,965.09
  5. Step 5: Solve for x
    x = 1,173,856,965.09/39,461.47
  6. Step 6: Final answer
    x = 29,746.92

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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.