Home / 38,412.30-53,004.68-21,415.26

Finding the Fourth Proportional to 38,412.30, 53,004.68 and 21,415.26

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Solution

The fourth proportional to 38,412.30, 53,004.68 and 21,415.26 is: 29,550.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,412.30 : 53,004.68 = 21,415.26 : x
  2. Step 2: Convert to fraction form
    38,412.30/53,004.68 = 21,415.26/x
  3. Step 3: Cross multiply
    38,412.30x = 53,004.68 × 21,415.26
  4. Step 4: Simplify right side
    38,412.30x = 1,135,109,003.42
  5. Step 5: Solve for x
    x = 1,135,109,003.42/38,412.30
  6. Step 6: Final answer
    x = 29,550.66

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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.