Home / 38,919.69-53,804.61-38,564.28

Finding the Fourth Proportional to 38,919.69, 53,804.61 and 38,564.28

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Solution

The fourth proportional to 38,919.69, 53,804.61 and 38,564.28 is: 53,313.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,919.69 : 53,804.61 = 38,564.28 : x
  2. Step 2: Convert to fraction form
    38,919.69/53,804.61 = 38,564.28/x
  3. Step 3: Cross multiply
    38,919.69x = 53,804.61 × 38,564.28
  4. Step 4: Simplify right side
    38,919.69x = 2,074,936,045.33
  5. Step 5: Solve for x
    x = 2,074,936,045.33/38,919.69
  6. Step 6: Final answer
    x = 53,313.27

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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.