Home / 30,207.96-45,291.24-15,388.20

Finding the Fourth Proportional to 30,207.96, 45,291.24 and 15,388.20

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Solution

The fourth proportional to 30,207.96, 45,291.24 and 15,388.20 is: 23,071.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.96 : 45,291.24 = 15,388.20 : x
  2. Step 2: Convert to fraction form
    30,207.96/45,291.24 = 15,388.20/x
  3. Step 3: Cross multiply
    30,207.96x = 45,291.24 × 15,388.20
  4. Step 4: Simplify right side
    30,207.96x = 696,950,659.37
  5. Step 5: Solve for x
    x = 696,950,659.37/30,207.96
  6. Step 6: Final answer
    x = 23,071.76

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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.