Home / 30,238.31-45,357.39-8,051.69

Finding the Fourth Proportional to 30,238.31, 45,357.39 and 8,051.69

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Solution

The fourth proportional to 30,238.31, 45,357.39 and 8,051.69 is: 12,077.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.31 : 45,357.39 = 8,051.69 : x
  2. Step 2: Convert to fraction form
    30,238.31/45,357.39 = 8,051.69/x
  3. Step 3: Cross multiply
    30,238.31x = 45,357.39 × 8,051.69
  4. Step 4: Simplify right side
    30,238.31x = 365,203,416.70
  5. Step 5: Solve for x
    x = 365,203,416.70/30,238.31
  6. Step 6: Final answer
    x = 12,077.51

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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.