Home / 27,330.81-40,997.69-8,612.30

Finding the Fourth Proportional to 27,330.81, 40,997.69 and 8,612.30

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Solution

The fourth proportional to 27,330.81, 40,997.69 and 8,612.30 is: 12,918.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,330.81 : 40,997.69 = 8,612.30 : x
  2. Step 2: Convert to fraction form
    27,330.81/40,997.69 = 8,612.30/x
  3. Step 3: Cross multiply
    27,330.81x = 40,997.69 × 8,612.30
  4. Step 4: Simplify right side
    27,330.81x = 353,084,157.54
  5. Step 5: Solve for x
    x = 353,084,157.54/27,330.81
  6. Step 6: Final answer
    x = 12,918.91

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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.