Home / 20,173.56-30,240.90-10,317.48

Finding the Fourth Proportional to 20,173.56, 30,240.90 and 10,317.48

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Solution

The fourth proportional to 20,173.56, 30,240.90 and 10,317.48 is: 15,466.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.56 : 30,240.90 = 10,317.48 : x
  2. Step 2: Convert to fraction form
    20,173.56/30,240.90 = 10,317.48/x
  3. Step 3: Cross multiply
    20,173.56x = 30,240.90 × 10,317.48
  4. Step 4: Simplify right side
    20,173.56x = 312,009,880.93
  5. Step 5: Solve for x
    x = 312,009,880.93/20,173.56
  6. Step 6: Final answer
    x = 15,466.28

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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.