Home / 29,132.53-40,216.43-21,965.34

Finding the Fourth Proportional to 29,132.53, 40,216.43 and 21,965.34

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Solution

The fourth proportional to 29,132.53, 40,216.43 and 21,965.34 is: 30,322.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,132.53 : 40,216.43 = 21,965.34 : x
  2. Step 2: Convert to fraction form
    29,132.53/40,216.43 = 21,965.34/x
  3. Step 3: Cross multiply
    29,132.53x = 40,216.43 × 21,965.34
  4. Step 4: Simplify right side
    29,132.53x = 883,367,558.54
  5. Step 5: Solve for x
    x = 883,367,558.54/29,132.53
  6. Step 6: Final answer
    x = 30,322.38

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Half scale
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Find fourth proportional to 29,133.53, 40,217.81 and 21,966.34
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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.