Home / 14,251.40-21,402.70-13,790.60

Finding the Fourth Proportional to 14,251.40, 21,402.70 and 13,790.60

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Solution

The fourth proportional to 14,251.40, 21,402.70 and 13,790.60 is: 20,710.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,251.40 : 21,402.70 = 13,790.60 : x
  2. Step 2: Convert to fraction form
    14,251.40/21,402.70 = 13,790.60/x
  3. Step 3: Cross multiply
    14,251.40x = 21,402.70 × 13,790.60
  4. Step 4: Simplify right side
    14,251.40x = 295,156,074.62
  5. Step 5: Solve for x
    x = 295,156,074.62/14,251.40
  6. Step 6: Final answer
    x = 20,710.67

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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.