Home / 30,012.32-45,018.51-7,825.68

Finding the Fourth Proportional to 30,012.32, 45,018.51 and 7,825.68

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Solution

The fourth proportional to 30,012.32, 45,018.51 and 7,825.68 is: 11,738.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,012.32 : 45,018.51 = 7,825.68 : x
  2. Step 2: Convert to fraction form
    30,012.32/45,018.51 = 7,825.68/x
  3. Step 3: Cross multiply
    30,012.32x = 45,018.51 × 7,825.68
  4. Step 4: Simplify right side
    30,012.32x = 352,300,228.24
  5. Step 5: Solve for x
    x = 352,300,228.24/30,012.32
  6. Step 6: Final answer
    x = 11,738.52

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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.