Home / 39,161.93-54,043.53-21,256.94

Finding the Fourth Proportional to 39,161.93, 54,043.53 and 21,256.94

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Solution

The fourth proportional to 39,161.93, 54,043.53 and 21,256.94 is: 29,334.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,161.93 : 54,043.53 = 21,256.94 : x
  2. Step 2: Convert to fraction form
    39,161.93/54,043.53 = 21,256.94/x
  3. Step 3: Cross multiply
    39,161.93x = 54,043.53 × 21,256.94
  4. Step 4: Simplify right side
    39,161.93x = 1,148,800,265.78
  5. Step 5: Solve for x
    x = 1,148,800,265.78/39,161.93
  6. Step 6: Final answer
    x = 29,334.62

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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.