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Finding the Fourth Proportional to 27,289.60, 40,922.88 and 9,756.16

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Solution

The fourth proportional to 27,289.60, 40,922.88 and 9,756.16 is: 14,630.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,289.60 : 40,922.88 = 9,756.16 : x
  2. Step 2: Convert to fraction form
    27,289.60/40,922.88 = 9,756.16/x
  3. Step 3: Cross multiply
    27,289.60x = 40,922.88 × 9,756.16
  4. Step 4: Simplify right side
    27,289.60x = 399,250,164.94
  5. Step 5: Solve for x
    x = 399,250,164.94/27,289.60
  6. Step 6: Final answer
    x = 14,630.12

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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.