Home / 21,276.44-31,905.43-7,232.69

Finding the Fourth Proportional to 21,276.44, 31,905.43 and 7,232.69

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Solution

The fourth proportional to 21,276.44, 31,905.43 and 7,232.69 is: 10,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.44 : 31,905.43 = 7,232.69 : x
  2. Step 2: Convert to fraction form
    21,276.44/31,905.43 = 7,232.69/x
  3. Step 3: Cross multiply
    21,276.44x = 31,905.43 × 7,232.69
  4. Step 4: Simplify right side
    21,276.44x = 230,762,146.19
  5. Step 5: Solve for x
    x = 230,762,146.19/21,276.44
  6. Step 6: Final answer
    x = 10,845.90

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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.