Home / 28,450.21-39,258.30-16,511.23

Finding the Fourth Proportional to 28,450.21, 39,258.30 and 16,511.23

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Solution

The fourth proportional to 28,450.21, 39,258.30 and 16,511.23 is: 22,783.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.21 : 39,258.30 = 16,511.23 : x
  2. Step 2: Convert to fraction form
    28,450.21/39,258.30 = 16,511.23/x
  3. Step 3: Cross multiply
    28,450.21x = 39,258.30 × 16,511.23
  4. Step 4: Simplify right side
    28,450.21x = 648,202,820.71
  5. Step 5: Solve for x
    x = 648,202,820.71/28,450.21
  6. Step 6: Final answer
    x = 22,783.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.