Home / 28,726.66-39,636.88-16,787.67

Finding the Fourth Proportional to 28,726.66, 39,636.88 and 16,787.67

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Solution

The fourth proportional to 28,726.66, 39,636.88 and 16,787.67 is: 23,163.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,726.66 : 39,636.88 = 16,787.67 : x
  2. Step 2: Convert to fraction form
    28,726.66/39,636.88 = 16,787.67/x
  3. Step 3: Cross multiply
    28,726.66x = 39,636.88 × 16,787.67
  4. Step 4: Simplify right side
    28,726.66x = 665,410,861.27
  5. Step 5: Solve for x
    x = 665,410,861.27/28,726.66
  6. Step 6: Final answer
    x = 23,163.53

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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.