Home / 39,911.27-55,076.76-21,762.14

Finding the Fourth Proportional to 39,911.27, 55,076.76 and 21,762.14

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Solution

The fourth proportional to 39,911.27, 55,076.76 and 21,762.14 is: 30,031.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,911.27 : 55,076.76 = 21,762.14 : x
  2. Step 2: Convert to fraction form
    39,911.27/55,076.76 = 21,762.14/x
  3. Step 3: Cross multiply
    39,911.27x = 55,076.76 × 21,762.14
  4. Step 4: Simplify right side
    39,911.27x = 1,198,587,886.48
  5. Step 5: Solve for x
    x = 1,198,587,886.48/39,911.27
  6. Step 6: Final answer
    x = 30,031.32

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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.