Home / 39,065.49-53,911.08-21,161.25

Finding the Fourth Proportional to 39,065.49, 53,911.08 and 21,161.25

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Solution

The fourth proportional to 39,065.49, 53,911.08 and 21,161.25 is: 29,202.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,065.49 : 53,911.08 = 21,161.25 : x
  2. Step 2: Convert to fraction form
    39,065.49/53,911.08 = 21,161.25/x
  3. Step 3: Cross multiply
    39,065.49x = 53,911.08 × 21,161.25
  4. Step 4: Simplify right side
    39,065.49x = 1,140,825,841.65
  5. Step 5: Solve for x
    x = 1,140,825,841.65/39,065.49
  6. Step 6: Final answer
    x = 29,202.91

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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.