Home / 21,740.36-32,615.52-7,889.36

Finding the Fourth Proportional to 21,740.36, 32,615.52 and 7,889.36

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Solution

The fourth proportional to 21,740.36, 32,615.52 and 7,889.36 is: 11,835.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,740.36 : 32,615.52 = 7,889.36 : x
  2. Step 2: Convert to fraction form
    21,740.36/32,615.52 = 7,889.36/x
  3. Step 3: Cross multiply
    21,740.36x = 32,615.52 × 7,889.36
  4. Step 4: Simplify right side
    21,740.36x = 257,315,578.87
  5. Step 5: Solve for x
    x = 257,315,578.87/21,740.36
  6. Step 6: Final answer
    x = 11,835.85

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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.