Home / 30,900.36-46,359.18-10,138.44

Finding the Fourth Proportional to 30,900.36, 46,359.18 and 10,138.44

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Solution

The fourth proportional to 30,900.36, 46,359.18 and 10,138.44 is: 15,210.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,900.36 : 46,359.18 = 10,138.44 : x
  2. Step 2: Convert to fraction form
    30,900.36/46,359.18 = 10,138.44/x
  3. Step 3: Cross multiply
    30,900.36x = 46,359.18 × 10,138.44
  4. Step 4: Simplify right side
    30,900.36x = 470,009,764.88
  5. Step 5: Solve for x
    x = 470,009,764.88/30,900.36
  6. Step 6: Final answer
    x = 15,210.49

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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.