Home / 39,873.15-55,025.64-21,968.03

Finding the Fourth Proportional to 39,873.15, 55,025.64 and 21,968.03

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Solution

The fourth proportional to 39,873.15, 55,025.64 and 21,968.03 is: 30,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,873.15 : 55,025.64 = 21,968.03 : x
  2. Step 2: Convert to fraction form
    39,873.15/55,025.64 = 21,968.03/x
  3. Step 3: Cross multiply
    39,873.15x = 55,025.64 × 21,968.03
  4. Step 4: Simplify right side
    39,873.15x = 1,208,804,635.16
  5. Step 5: Solve for x
    x = 1,208,804,635.16/39,873.15
  6. Step 6: Final answer
    x = 30,316.26

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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.