Home / 39,238.84-54,151.81-21,333.46

Finding the Fourth Proportional to 39,238.84, 54,151.81 and 21,333.46

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Solution

The fourth proportional to 39,238.84, 54,151.81 and 21,333.46 is: 29,441.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,238.84 : 54,151.81 = 21,333.46 : x
  2. Step 2: Convert to fraction form
    39,238.84/54,151.81 = 21,333.46/x
  3. Step 3: Cross multiply
    39,238.84x = 54,151.81 × 21,333.46
  4. Step 4: Simplify right side
    39,238.84x = 1,155,245,385.38
  5. Step 5: Solve for x
    x = 1,155,245,385.38/39,238.84
  6. Step 6: Final answer
    x = 29,441.38

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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.