Home / 30,276.56-41,768.52-21,322.64

Finding the Fourth Proportional to 30,276.56, 41,768.52 and 21,322.64

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Solution

The fourth proportional to 30,276.56, 41,768.52 and 21,322.64 is: 29,415.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276.56 : 41,768.52 = 21,322.64 : x
  2. Step 2: Convert to fraction form
    30,276.56/41,768.52 = 21,322.64/x
  3. Step 3: Cross multiply
    30,276.56x = 41,768.52 × 21,322.64
  4. Step 4: Simplify right side
    30,276.56x = 890,615,115.29
  5. Step 5: Solve for x
    x = 890,615,115.29/30,276.56
  6. Step 6: Final answer
    x = 29,415.99

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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.