Home / 19,720.26-29,584.85-7,240.19

Finding the Fourth Proportional to 19,720.26, 29,584.85 and 7,240.19

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Solution

The fourth proportional to 19,720.26, 29,584.85 and 7,240.19 is: 10,861.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.26 : 29,584.85 = 7,240.19 : x
  2. Step 2: Convert to fraction form
    19,720.26/29,584.85 = 7,240.19/x
  3. Step 3: Cross multiply
    19,720.26x = 29,584.85 × 7,240.19
  4. Step 4: Simplify right side
    19,720.26x = 214,199,751.00
  5. Step 5: Solve for x
    x = 214,199,751.00/19,720.26
  6. Step 6: Final answer
    x = 10,861.91

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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.