Home / 39,647.51-54,714.32-21,741.45

Finding the Fourth Proportional to 39,647.51, 54,714.32 and 21,741.45

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Solution

The fourth proportional to 39,647.51, 54,714.32 and 21,741.45 is: 30,003.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,647.51 : 54,714.32 = 21,741.45 : x
  2. Step 2: Convert to fraction form
    39,647.51/54,714.32 = 21,741.45/x
  3. Step 3: Cross multiply
    39,647.51x = 54,714.32 × 21,741.45
  4. Step 4: Simplify right side
    39,647.51x = 1,189,568,543.86
  5. Step 5: Solve for x
    x = 1,189,568,543.86/39,647.51
  6. Step 6: Final answer
    x = 30,003.62

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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.