Home / 19,722.76-29,588.60-7,242.69

Finding the Fourth Proportional to 19,722.76, 29,588.60 and 7,242.69

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Solution

The fourth proportional to 19,722.76, 29,588.60 and 7,242.69 is: 10,865.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.76 : 29,588.60 = 7,242.69 : x
  2. Step 2: Convert to fraction form
    19,722.76/29,588.60 = 7,242.69/x
  3. Step 3: Cross multiply
    19,722.76x = 29,588.60 × 7,242.69
  4. Step 4: Simplify right side
    19,722.76x = 214,301,057.33
  5. Step 5: Solve for x
    x = 214,301,057.33/19,722.76
  6. Step 6: Final answer
    x = 10,865.67

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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.