Home / 39,012.72-53,838.92-22,021.08

Finding the Fourth Proportional to 39,012.72, 53,838.92 and 22,021.08

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Solution

The fourth proportional to 39,012.72, 53,838.92 and 22,021.08 is: 30,389.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,012.72 : 53,838.92 = 22,021.08 : x
  2. Step 2: Convert to fraction form
    39,012.72/53,838.92 = 22,021.08/x
  3. Step 3: Cross multiply
    39,012.72x = 53,838.92 × 22,021.08
  4. Step 4: Simplify right side
    39,012.72x = 1,185,591,219.49
  5. Step 5: Solve for x
    x = 1,185,591,219.49/39,012.72
  6. Step 6: Final answer
    x = 30,389.86

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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.