Home / 21,479.76-32,183.19-10,391.67

Finding the Fourth Proportional to 21,479.76, 32,183.19 and 10,391.67

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Solution

The fourth proportional to 21,479.76, 32,183.19 and 10,391.67 is: 15,569.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,479.76 : 32,183.19 = 10,391.67 : x
  2. Step 2: Convert to fraction form
    21,479.76/32,183.19 = 10,391.67/x
  3. Step 3: Cross multiply
    21,479.76x = 32,183.19 × 10,391.67
  4. Step 4: Simplify right side
    21,479.76x = 334,437,090.03
  5. Step 5: Solve for x
    x = 334,437,090.03/21,479.76
  6. Step 6: Final answer
    x = 15,569.87

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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.