Home / 38,633.51-53,309.83-21,635.39

Finding the Fourth Proportional to 38,633.51, 53,309.83 and 21,635.39

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Solution

The fourth proportional to 38,633.51, 53,309.83 and 21,635.39 is: 29,854.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,633.51 : 53,309.83 = 21,635.39 : x
  2. Step 2: Convert to fraction form
    38,633.51/53,309.83 = 21,635.39/x
  3. Step 3: Cross multiply
    38,633.51x = 53,309.83 × 21,635.39
  4. Step 4: Simplify right side
    38,633.51x = 1,153,378,962.88
  5. Step 5: Solve for x
    x = 1,153,378,962.88/38,633.51
  6. Step 6: Final answer
    x = 29,854.37

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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.