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Finding the Fourth Proportional to 18,492.45, 27,793.35 and 18,164.40

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Solution

The fourth proportional to 18,492.45, 27,793.35 and 18,164.40 is: 27,300.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.45 : 27,793.35 = 18,164.40 : x
  2. Step 2: Convert to fraction form
    18,492.45/27,793.35 = 18,164.40/x
  3. Step 3: Cross multiply
    18,492.45x = 27,793.35 × 18,164.40
  4. Step 4: Simplify right side
    18,492.45x = 504,849,526.74
  5. Step 5: Solve for x
    x = 504,849,526.74/18,492.45
  6. Step 6: Final answer
    x = 27,300.31

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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.