Home / 39,945.63-55,126.12-22,041.79

Finding the Fourth Proportional to 39,945.63, 55,126.12 and 22,041.79

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Solution

The fourth proportional to 39,945.63, 55,126.12 and 22,041.79 is: 30,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,945.63 : 55,126.12 = 22,041.79 : x
  2. Step 2: Convert to fraction form
    39,945.63/55,126.12 = 22,041.79/x
  3. Step 3: Cross multiply
    39,945.63x = 55,126.12 × 22,041.79
  4. Step 4: Simplify right side
    39,945.63x = 1,215,078,222.74
  5. Step 5: Solve for x
    x = 1,215,078,222.74/39,945.63
  6. Step 6: Final answer
    x = 30,418.30

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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.