Home / 42,853.39-64,321.65-20,682.37

Finding the Fourth Proportional to 42,853.39, 64,321.65 and 20,682.37

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Solution

The fourth proportional to 42,853.39, 64,321.65 and 20,682.37 is: 31,043.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,853.39 : 64,321.65 = 20,682.37 : x
  2. Step 2: Convert to fraction form
    42,853.39/64,321.65 = 20,682.37/x
  3. Step 3: Cross multiply
    42,853.39x = 64,321.65 × 20,682.37
  4. Step 4: Simplify right side
    42,853.39x = 1,330,324,164.31
  5. Step 5: Solve for x
    x = 1,330,324,164.31/42,853.39
  6. Step 6: Final answer
    x = 31,043.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.