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Finding the Fourth Proportional to 21,777.74, 30,053.06 and 11,841.74

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Solution

The fourth proportional to 21,777.74, 30,053.06 and 11,841.74 is: 16,341.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,777.74 : 30,053.06 = 11,841.74 : x
  2. Step 2: Convert to fraction form
    21,777.74/30,053.06 = 11,841.74/x
  3. Step 3: Cross multiply
    21,777.74x = 30,053.06 × 11,841.74
  4. Step 4: Simplify right side
    21,777.74x = 355,880,522.72
  5. Step 5: Solve for x
    x = 355,880,522.72/21,777.74
  6. Step 6: Final answer
    x = 16,341.48

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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.