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Finding the Fourth Proportional to 27,160.21, 40,655.09 and 18,677.21

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Solution

The fourth proportional to 27,160.21, 40,655.09 and 18,677.21 is: 27,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,160.21 : 40,655.09 = 18,677.21 : x
  2. Step 2: Convert to fraction form
    27,160.21/40,655.09 = 18,677.21/x
  3. Step 3: Cross multiply
    27,160.21x = 40,655.09 × 18,677.21
  4. Step 4: Simplify right side
    27,160.21x = 759,323,653.50
  5. Step 5: Solve for x
    x = 759,323,653.50/27,160.21
  6. Step 6: Final answer
    x = 27,957.21

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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.