Home / 39,513.80-54,529.05-21,608.84

Finding the Fourth Proportional to 39,513.80, 54,529.05 and 21,608.84

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Solution

The fourth proportional to 39,513.80, 54,529.05 and 21,608.84 is: 29,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,513.80 : 54,529.05 = 21,608.84 : x
  2. Step 2: Convert to fraction form
    39,513.80/54,529.05 = 21,608.84/x
  3. Step 3: Cross multiply
    39,513.80x = 54,529.05 × 21,608.84
  4. Step 4: Simplify right side
    39,513.80x = 1,178,309,516.80
  5. Step 5: Solve for x
    x = 1,178,309,516.80/39,513.80
  6. Step 6: Final answer
    x = 29,820.20

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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.