Home / 39,006.18-53,828.31-21,101.13

Finding the Fourth Proportional to 39,006.18, 53,828.31 and 21,101.13

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Solution

The fourth proportional to 39,006.18, 53,828.31 and 21,101.13 is: 29,119.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,006.18 : 53,828.31 = 21,101.13 : x
  2. Step 2: Convert to fraction form
    39,006.18/53,828.31 = 21,101.13/x
  3. Step 3: Cross multiply
    39,006.18x = 53,828.31 × 21,101.13
  4. Step 4: Simplify right side
    39,006.18x = 1,135,838,166.99
  5. Step 5: Solve for x
    x = 1,135,838,166.99/39,006.18
  6. Step 6: Final answer
    x = 29,119.44

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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.