Home / 21,749.07-32,614.38-7,712.63

Finding the Fourth Proportional to 21,749.07, 32,614.38 and 7,712.63

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Solution

The fourth proportional to 21,749.07, 32,614.38 and 7,712.63 is: 11,565.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,749.07 : 32,614.38 = 7,712.63 : x
  2. Step 2: Convert to fraction form
    21,749.07/32,614.38 = 7,712.63/x
  3. Step 3: Cross multiply
    21,749.07x = 32,614.38 × 7,712.63
  4. Step 4: Simplify right side
    21,749.07x = 251,542,645.62
  5. Step 5: Solve for x
    x = 251,542,645.62/21,749.07
  6. Step 6: Final answer
    x = 11,565.67

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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.