Home / 39,859.02-55,004.85-21,954.06

Finding the Fourth Proportional to 39,859.02, 55,004.85 and 21,954.06

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Solution

The fourth proportional to 39,859.02, 55,004.85 and 21,954.06 is: 30,296.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,859.02 : 55,004.85 = 21,954.06 : x
  2. Step 2: Convert to fraction form
    39,859.02/55,004.85 = 21,954.06/x
  3. Step 3: Cross multiply
    39,859.02x = 55,004.85 × 21,954.06
  4. Step 4: Simplify right side
    39,859.02x = 1,207,579,777.19
  5. Step 5: Solve for x
    x = 1,207,579,777.19/39,859.02
  6. Step 6: Final answer
    x = 30,296.27

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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.