Home / 47,884.56-71,782.44-21,216.40

Finding the Fourth Proportional to 47,884.56, 71,782.44 and 21,216.40

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Solution

The fourth proportional to 47,884.56, 71,782.44 and 21,216.40 is: 31,804.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,884.56 : 71,782.44 = 21,216.40 : x
  2. Step 2: Convert to fraction form
    47,884.56/71,782.44 = 21,216.40/x
  3. Step 3: Cross multiply
    47,884.56x = 71,782.44 × 21,216.40
  4. Step 4: Simplify right side
    47,884.56x = 1,522,964,960.02
  5. Step 5: Solve for x
    x = 1,522,964,960.02/47,884.56
  6. Step 6: Final answer
    x = 31,804.93

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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.