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Finding the Fourth Proportional to 18,275.94, 27,253.45 and 18,109.62

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Solution

The fourth proportional to 18,275.94, 27,253.45 and 18,109.62 is: 27,005.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.94 : 27,253.45 = 18,109.62 : x
  2. Step 2: Convert to fraction form
    18,275.94/27,253.45 = 18,109.62/x
  3. Step 3: Cross multiply
    18,275.94x = 27,253.45 × 18,109.62
  4. Step 4: Simplify right side
    18,275.94x = 493,549,623.19
  5. Step 5: Solve for x
    x = 493,549,623.19/18,275.94
  6. Step 6: Final answer
    x = 27,005.43

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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.