Home / 23,137.85-34,720.67-9,990.23

Finding the Fourth Proportional to 23,137.85, 34,720.67 and 9,990.23

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Solution

The fourth proportional to 23,137.85, 34,720.67 and 9,990.23 is: 14,991.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,137.85 : 34,720.67 = 9,990.23 : x
  2. Step 2: Convert to fraction form
    23,137.85/34,720.67 = 9,990.23/x
  3. Step 3: Cross multiply
    23,137.85x = 34,720.67 × 9,990.23
  4. Step 4: Simplify right side
    23,137.85x = 346,867,330.43
  5. Step 5: Solve for x
    x = 346,867,330.43/23,137.85
  6. Step 6: Final answer
    x = 14,991.34

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Similar ratio
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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.