Home / 39,066.61-53,911.92-21,161.68

Finding the Fourth Proportional to 39,066.61, 53,911.92 and 21,161.68

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Solution

The fourth proportional to 39,066.61, 53,911.92 and 21,161.68 is: 29,203.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,066.61 : 53,911.92 = 21,161.68 : x
  2. Step 2: Convert to fraction form
    39,066.61/53,911.92 = 21,161.68/x
  3. Step 3: Cross multiply
    39,066.61x = 53,911.92 × 21,161.68
  4. Step 4: Simplify right side
    39,066.61x = 1,140,866,799.23
  5. Step 5: Solve for x
    x = 1,140,866,799.23/39,066.61
  6. Step 6: Final answer
    x = 29,203.12

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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.