Home / 38,632.22-53,313.62-21,636.42

Finding the Fourth Proportional to 38,632.22, 53,313.62 and 21,636.42

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Solution

The fourth proportional to 38,632.22, 53,313.62 and 21,636.42 is: 29,858.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,632.22 : 53,313.62 = 21,636.42 : x
  2. Step 2: Convert to fraction form
    38,632.22/53,313.62 = 21,636.42/x
  3. Step 3: Cross multiply
    38,632.22x = 53,313.62 × 21,636.42
  4. Step 4: Simplify right side
    38,632.22x = 1,153,515,874.04
  5. Step 5: Solve for x
    x = 1,153,515,874.04/38,632.22
  6. Step 6: Final answer
    x = 29,858.91

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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.