Home / 30,008.12-45,014.37-10,286.51

Finding the Fourth Proportional to 30,008.12, 45,014.37 and 10,286.51

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Solution

The fourth proportional to 30,008.12, 45,014.37 and 10,286.51 is: 15,430.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,008.12 : 45,014.37 = 10,286.51 : x
  2. Step 2: Convert to fraction form
    30,008.12/45,014.37 = 10,286.51/x
  3. Step 3: Cross multiply
    30,008.12x = 45,014.37 × 10,286.51
  4. Step 4: Simplify right side
    30,008.12x = 463,040,767.15
  5. Step 5: Solve for x
    x = 463,040,767.15/30,008.12
  6. Step 6: Final answer
    x = 15,430.52

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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.