Home / 39,816.50-54,946.49-21,911.04

Finding the Fourth Proportional to 39,816.50, 54,946.49 and 21,911.04

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Solution

The fourth proportional to 39,816.50, 54,946.49 and 21,911.04 is: 30,237.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,816.50 : 54,946.49 = 21,911.04 : x
  2. Step 2: Convert to fraction form
    39,816.50/54,946.49 = 21,911.04/x
  3. Step 3: Cross multiply
    39,816.50x = 54,946.49 × 21,911.04
  4. Step 4: Simplify right side
    39,816.50x = 1,203,934,630.69
  5. Step 5: Solve for x
    x = 1,203,934,630.69/39,816.50
  6. Step 6: Final answer
    x = 30,237.08

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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.