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Finding the Fourth Proportional to 27,075.60, 40,606.20 and 8,355.60

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Solution

The fourth proportional to 27,075.60, 40,606.20 and 8,355.60 is: 12,531.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,075.60 : 40,606.20 = 8,355.60 : x
  2. Step 2: Convert to fraction form
    27,075.60/40,606.20 = 8,355.60/x
  3. Step 3: Cross multiply
    27,075.60x = 40,606.20 × 8,355.60
  4. Step 4: Simplify right side
    27,075.60x = 339,289,164.72
  5. Step 5: Solve for x
    x = 339,289,164.72/27,075.60
  6. Step 6: Final answer
    x = 12,531.18

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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.