Home / 14,269.40-21,429.70-13,808.60

Finding the Fourth Proportional to 14,269.40, 21,429.70 and 13,808.60

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Solution

The fourth proportional to 14,269.40, 21,429.70 and 13,808.60 is: 20,737.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,269.40 : 21,429.70 = 13,808.60 : x
  2. Step 2: Convert to fraction form
    14,269.40/21,429.70 = 13,808.60/x
  3. Step 3: Cross multiply
    14,269.40x = 21,429.70 × 13,808.60
  4. Step 4: Simplify right side
    14,269.40x = 295,914,155.42
  5. Step 5: Solve for x
    x = 295,914,155.42/14,269.40
  6. Step 6: Final answer
    x = 20,737.67

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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.