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Finding the Fourth Proportional to 26,804.30, 40,206.45 and 11,220.30

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Solution

The fourth proportional to 26,804.30, 40,206.45 and 11,220.30 is: 16,830.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,804.30 : 40,206.45 = 11,220.30 : x
  2. Step 2: Convert to fraction form
    26,804.30/40,206.45 = 11,220.30/x
  3. Step 3: Cross multiply
    26,804.30x = 40,206.45 × 11,220.30
  4. Step 4: Simplify right side
    26,804.30x = 451,128,430.94
  5. Step 5: Solve for x
    x = 451,128,430.94/26,804.30
  6. Step 6: Final answer
    x = 16,830.45

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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.