Home / 21,093.12-31,629.35-7,048.33

Finding the Fourth Proportional to 21,093.12, 31,629.35 and 7,048.33

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Solution

The fourth proportional to 21,093.12, 31,629.35 and 7,048.33 is: 10,569.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,093.12 : 31,629.35 = 7,048.33 : x
  2. Step 2: Convert to fraction form
    21,093.12/31,629.35 = 7,048.33/x
  3. Step 3: Cross multiply
    21,093.12x = 31,629.35 × 7,048.33
  4. Step 4: Simplify right side
    21,093.12x = 222,934,096.49
  5. Step 5: Solve for x
    x = 222,934,096.49/21,093.12
  6. Step 6: Final answer
    x = 10,569.04

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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.