Home / 39,533.79-54,556.17-21,628.59

Finding the Fourth Proportional to 39,533.79, 54,556.17 and 21,628.59

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Solution

The fourth proportional to 39,533.79, 54,556.17 and 21,628.59 is: 29,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,533.79 : 54,556.17 = 21,628.59 : x
  2. Step 2: Convert to fraction form
    39,533.79/54,556.17 = 21,628.59/x
  3. Step 3: Cross multiply
    39,533.79x = 54,556.17 × 21,628.59
  4. Step 4: Simplify right side
    39,533.79x = 1,179,973,032.90
  5. Step 5: Solve for x
    x = 1,179,973,032.90/39,533.79
  6. Step 6: Final answer
    x = 29,847.20

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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.