Home / 39,066.51-53,911.80-21,161.46

Finding the Fourth Proportional to 39,066.51, 53,911.80 and 21,161.46

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Solution

The fourth proportional to 39,066.51, 53,911.80 and 21,161.46 is: 29,202.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,066.51 : 53,911.80 = 21,161.46 : x
  2. Step 2: Convert to fraction form
    39,066.51/53,911.80 = 21,161.46/x
  3. Step 3: Cross multiply
    39,066.51x = 53,911.80 × 21,161.46
  4. Step 4: Simplify right side
    39,066.51x = 1,140,852,399.23
  5. Step 5: Solve for x
    x = 1,140,852,399.23/39,066.51
  6. Step 6: Final answer
    x = 29,202.82

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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.