Home / 38,968.12-53,773.16-21,971.49

Finding the Fourth Proportional to 38,968.12, 53,773.16 and 21,971.49

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Solution

The fourth proportional to 38,968.12, 53,773.16 and 21,971.49 is: 30,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,968.12 : 53,773.16 = 21,971.49 : x
  2. Step 2: Convert to fraction form
    38,968.12/53,773.16 = 21,971.49/x
  3. Step 3: Cross multiply
    38,968.12x = 53,773.16 × 21,971.49
  4. Step 4: Simplify right side
    38,968.12x = 1,181,476,447.21
  5. Step 5: Solve for x
    x = 1,181,476,447.21/38,968.12
  6. Step 6: Final answer
    x = 30,319.05

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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.