Home / 30,137.92-45,175.48-10,132.56

Finding the Fourth Proportional to 30,137.92, 45,175.48 and 10,132.56

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Solution

The fourth proportional to 30,137.92, 45,175.48 and 10,132.56 is: 15,188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,137.92 : 45,175.48 = 10,132.56 : x
  2. Step 2: Convert to fraction form
    30,137.92/45,175.48 = 10,132.56/x
  3. Step 3: Cross multiply
    30,137.92x = 45,175.48 × 10,132.56
  4. Step 4: Simplify right side
    30,137.92x = 457,743,261.63
  5. Step 5: Solve for x
    x = 457,743,261.63/30,137.92
  6. Step 6: Final answer
    x = 15,188.28

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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.