Home / 27,102.72-40,657.64-12,109.94

Finding the Fourth Proportional to 27,102.72, 40,657.64 and 12,109.94

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Solution

The fourth proportional to 27,102.72, 40,657.64 and 12,109.94 is: 18,166.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,102.72 : 40,657.64 = 12,109.94 : x
  2. Step 2: Convert to fraction form
    27,102.72/40,657.64 = 12,109.94/x
  3. Step 3: Cross multiply
    27,102.72x = 40,657.64 × 12,109.94
  4. Step 4: Simplify right side
    27,102.72x = 492,361,580.94
  5. Step 5: Solve for x
    x = 492,361,580.94/27,102.72
  6. Step 6: Final answer
    x = 18,166.50

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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.