Home / 38,403.82-57,613.57-21,771.28

Finding the Fourth Proportional to 38,403.82, 57,613.57 and 21,771.28

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Solution

The fourth proportional to 38,403.82, 57,613.57 and 21,771.28 is: 32,661.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,403.82 : 57,613.57 = 21,771.28 : x
  2. Step 2: Convert to fraction form
    38,403.82/57,613.57 = 21,771.28/x
  3. Step 3: Cross multiply
    38,403.82x = 57,613.57 × 21,771.28
  4. Step 4: Simplify right side
    38,403.82x = 1,254,320,965.81
  5. Step 5: Solve for x
    x = 1,254,320,965.81/38,403.82
  6. Step 6: Final answer
    x = 32,661.36

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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.