Home / 21,173.55-31,745.34-10,635.99

Finding the Fourth Proportional to 21,173.55, 31,745.34 and 10,635.99

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Solution

The fourth proportional to 21,173.55, 31,745.34 and 10,635.99 is: 15,946.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173.55 : 31,745.34 = 10,635.99 : x
  2. Step 2: Convert to fraction form
    21,173.55/31,745.34 = 10,635.99/x
  3. Step 3: Cross multiply
    21,173.55x = 31,745.34 × 10,635.99
  4. Step 4: Simplify right side
    21,173.55x = 337,643,118.79
  5. Step 5: Solve for x
    x = 337,643,118.79/21,173.55
  6. Step 6: Final answer
    x = 15,946.46

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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.