Home / 39,006.32-53,828.56-21,101.28

Finding the Fourth Proportional to 39,006.32, 53,828.56 and 21,101.28

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Solution

The fourth proportional to 39,006.32, 53,828.56 and 21,101.28 is: 29,119.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,006.32 : 53,828.56 = 21,101.28 : x
  2. Step 2: Convert to fraction form
    39,006.32/53,828.56 = 21,101.28/x
  3. Step 3: Cross multiply
    39,006.32x = 53,828.56 × 21,101.28
  4. Step 4: Simplify right side
    39,006.32x = 1,135,851,516.56
  5. Step 5: Solve for x
    x = 1,135,851,516.56/39,006.32
  6. Step 6: Final answer
    x = 29,119.68

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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.