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Finding the Fourth Proportional to 18,555.68, 27,700.84 and 17,907.68

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Solution

The fourth proportional to 18,555.68, 27,700.84 and 17,907.68 is: 26,733.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.68 : 27,700.84 = 17,907.68 : x
  2. Step 2: Convert to fraction form
    18,555.68/27,700.84 = 17,907.68/x
  3. Step 3: Cross multiply
    18,555.68x = 27,700.84 × 17,907.68
  4. Step 4: Simplify right side
    18,555.68x = 496,057,778.45
  5. Step 5: Solve for x
    x = 496,057,778.45/18,555.68
  6. Step 6: Final answer
    x = 26,733.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.