Home / 39,055.56-53,896.35-21,150.51

Finding the Fourth Proportional to 39,055.56, 53,896.35 and 21,150.51

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Solution

The fourth proportional to 39,055.56, 53,896.35 and 21,150.51 is: 29,187.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,055.56 : 53,896.35 = 21,150.51 : x
  2. Step 2: Convert to fraction form
    39,055.56/53,896.35 = 21,150.51/x
  3. Step 3: Cross multiply
    39,055.56x = 53,896.35 × 21,150.51
  4. Step 4: Simplify right side
    39,055.56x = 1,139,935,289.64
  5. Step 5: Solve for x
    x = 1,139,935,289.64/39,055.56
  6. Step 6: Final answer
    x = 29,187.53

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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.