Home / 14,047.20-21,095.10-13,609.80

Finding the Fourth Proportional to 14,047.20, 21,095.10 and 13,609.80

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Solution

The fourth proportional to 14,047.20, 21,095.10 and 13,609.80 is: 20,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,047.20 : 21,095.10 = 13,609.80 : x
  2. Step 2: Convert to fraction form
    14,047.20/21,095.10 = 13,609.80/x
  3. Step 3: Cross multiply
    14,047.20x = 21,095.10 × 13,609.80
  4. Step 4: Simplify right side
    14,047.20x = 287,100,091.98
  5. Step 5: Solve for x
    x = 287,100,091.98/14,047.20
  6. Step 6: Final answer
    x = 20,438.24

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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.