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Finding the Fourth Proportional to 27,635.40, 41,364.90 and 21,803.40

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Solution

The fourth proportional to 27,635.40, 41,364.90 and 21,803.40 is: 32,635.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,635.40 : 41,364.90 = 21,803.40 : x
  2. Step 2: Convert to fraction form
    27,635.40/41,364.90 = 21,803.40/x
  3. Step 3: Cross multiply
    27,635.40x = 41,364.90 × 21,803.40
  4. Step 4: Simplify right side
    27,635.40x = 901,895,460.66
  5. Step 5: Solve for x
    x = 901,895,460.66/27,635.40
  6. Step 6: Final answer
    x = 32,635.51

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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.