Home / 39,873.58-55,025.69-21,968.20

Finding the Fourth Proportional to 39,873.58, 55,025.69 and 21,968.20

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Solution

The fourth proportional to 39,873.58, 55,025.69 and 21,968.20 is: 30,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,873.58 : 55,025.69 = 21,968.20 : x
  2. Step 2: Convert to fraction form
    39,873.58/55,025.69 = 21,968.20/x
  3. Step 3: Cross multiply
    39,873.58x = 55,025.69 × 21,968.20
  4. Step 4: Simplify right side
    39,873.58x = 1,208,815,363.06
  5. Step 5: Solve for x
    x = 1,208,815,363.06/39,873.58
  6. Step 6: Final answer
    x = 30,316.20

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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.