Home / 27,330.55-40,995.83-21,099.67

Finding the Fourth Proportional to 27,330.55, 40,995.83 and 21,099.67

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Solution

The fourth proportional to 27,330.55, 40,995.83 and 21,099.67 is: 31,649.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,330.55 : 40,995.83 = 21,099.67 : x
  2. Step 2: Convert to fraction form
    27,330.55/40,995.83 = 21,099.67/x
  3. Step 3: Cross multiply
    27,330.55x = 40,995.83 × 21,099.67
  4. Step 4: Simplify right side
    27,330.55x = 864,998,434.64
  5. Step 5: Solve for x
    x = 864,998,434.64/27,330.55
  6. Step 6: Final answer
    x = 31,649.51

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Double scale
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Similar ratio
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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.