Home / 39,160.33-54,041.30-21,255.33

Finding the Fourth Proportional to 39,160.33, 54,041.30 and 21,255.33

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Solution

The fourth proportional to 39,160.33, 54,041.30 and 21,255.33 is: 29,332.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,160.33 : 54,041.30 = 21,255.33 : x
  2. Step 2: Convert to fraction form
    39,160.33/54,041.30 = 21,255.33/x
  3. Step 3: Cross multiply
    39,160.33x = 54,041.30 × 21,255.33
  4. Step 4: Simplify right side
    39,160.33x = 1,148,665,825.00
  5. Step 5: Solve for x
    x = 1,148,665,825.00/39,160.33
  6. Step 6: Final answer
    x = 29,332.38

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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.