Home / 21,821.43-32,741.87-11,430.75

Finding the Fourth Proportional to 21,821.43, 32,741.87 and 11,430.75

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Solution

The fourth proportional to 21,821.43, 32,741.87 and 11,430.75 is: 17,151.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,821.43 : 32,741.87 = 11,430.75 : x
  2. Step 2: Convert to fraction form
    21,821.43/32,741.87 = 11,430.75/x
  3. Step 3: Cross multiply
    21,821.43x = 32,741.87 × 11,430.75
  4. Step 4: Simplify right side
    21,821.43x = 374,264,073.35
  5. Step 5: Solve for x
    x = 374,264,073.35/21,821.43
  6. Step 6: Final answer
    x = 17,151.22

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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.