Home / 39,270.62-54,194.57-21,366.79

Finding the Fourth Proportional to 39,270.62, 54,194.57 and 21,366.79

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Solution

The fourth proportional to 39,270.62, 54,194.57 and 21,366.79 is: 29,486.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,270.62 : 54,194.57 = 21,366.79 : x
  2. Step 2: Convert to fraction form
    39,270.62/54,194.57 = 21,366.79/x
  3. Step 3: Cross multiply
    39,270.62x = 54,194.57 × 21,366.79
  4. Step 4: Simplify right side
    39,270.62x = 1,157,963,834.14
  5. Step 5: Solve for x
    x = 1,157,963,834.14/39,270.62
  6. Step 6: Final answer
    x = 29,486.77

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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.