Home / 39,160.52-54,040.66-21,255.56

Finding the Fourth Proportional to 39,160.52, 54,040.66 and 21,255.56

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Solution

The fourth proportional to 39,160.52, 54,040.66 and 21,255.56 is: 29,332.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,160.52 : 54,040.66 = 21,255.56 : x
  2. Step 2: Convert to fraction form
    39,160.52/54,040.66 = 21,255.56/x
  3. Step 3: Cross multiply
    39,160.52x = 54,040.66 × 21,255.56
  4. Step 4: Simplify right side
    39,160.52x = 1,148,664,491.07
  5. Step 5: Solve for x
    x = 1,148,664,491.07/39,160.52
  6. Step 6: Final answer
    x = 29,332.21

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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.