Home / 28,679.18-39,570.34-16,735.70

Finding the Fourth Proportional to 28,679.18, 39,570.34 and 16,735.70

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Solution

The fourth proportional to 28,679.18, 39,570.34 and 16,735.70 is: 23,091.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,679.18 : 39,570.34 = 16,735.70 : x
  2. Step 2: Convert to fraction form
    28,679.18/39,570.34 = 16,735.70/x
  3. Step 3: Cross multiply
    28,679.18x = 39,570.34 × 16,735.70
  4. Step 4: Simplify right side
    28,679.18x = 662,237,099.45
  5. Step 5: Solve for x
    x = 662,237,099.45/28,679.18
  6. Step 6: Final answer
    x = 23,091.22

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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.