Home / 30,477.82-45,720.39-10,752.31

Finding the Fourth Proportional to 30,477.82, 45,720.39 and 10,752.31

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Solution

The fourth proportional to 30,477.82, 45,720.39 and 10,752.31 is: 16,129.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,477.82 : 45,720.39 = 10,752.31 : x
  2. Step 2: Convert to fraction form
    30,477.82/45,720.39 = 10,752.31/x
  3. Step 3: Cross multiply
    30,477.82x = 45,720.39 × 10,752.31
  4. Step 4: Simplify right side
    30,477.82x = 491,599,806.60
  5. Step 5: Solve for x
    x = 491,599,806.60/30,477.82
  6. Step 6: Final answer
    x = 16,129.76

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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.