Home / 20,702.33-28,572.95-12,203.96

Finding the Fourth Proportional to 20,702.33, 28,572.95 and 12,203.96

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Solution

The fourth proportional to 20,702.33, 28,572.95 and 12,203.96 is: 16,843.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702.33 : 28,572.95 = 12,203.96 : x
  2. Step 2: Convert to fraction form
    20,702.33/28,572.95 = 12,203.96/x
  3. Step 3: Cross multiply
    20,702.33x = 28,572.95 × 12,203.96
  4. Step 4: Simplify right side
    20,702.33x = 348,703,138.88
  5. Step 5: Solve for x
    x = 348,703,138.88/20,702.33
  6. Step 6: Final answer
    x = 16,843.67

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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.