Home / 21,741.86-30,004.48-12,310.22

Finding the Fourth Proportional to 21,741.86, 30,004.48 and 12,310.22

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Solution

The fourth proportional to 21,741.86, 30,004.48 and 12,310.22 is: 16,988.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,741.86 : 30,004.48 = 12,310.22 : x
  2. Step 2: Convert to fraction form
    21,741.86/30,004.48 = 12,310.22/x
  3. Step 3: Cross multiply
    21,741.86x = 30,004.48 × 12,310.22
  4. Step 4: Simplify right side
    21,741.86x = 369,361,749.79
  5. Step 5: Solve for x
    x = 369,361,749.79/21,741.86
  6. Step 6: Final answer
    x = 16,988.51

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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.