Home / 39,161.18-54,043.49-21,256.22

Finding the Fourth Proportional to 39,161.18, 54,043.49 and 21,256.22

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Solution

The fourth proportional to 39,161.18, 54,043.49 and 21,256.22 is: 29,334.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,161.18 : 54,043.49 = 21,256.22 : x
  2. Step 2: Convert to fraction form
    39,161.18/54,043.49 = 21,256.22/x
  3. Step 3: Cross multiply
    39,161.18x = 54,043.49 × 21,256.22
  4. Step 4: Simplify right side
    39,161.18x = 1,148,760,313.01
  5. Step 5: Solve for x
    x = 1,148,760,313.01/39,161.18
  6. Step 6: Final answer
    x = 29,334.16

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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.