Home / 30,329.37-45,519.62-12,811.77

Finding the Fourth Proportional to 30,329.37, 45,519.62 and 12,811.77

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Solution

The fourth proportional to 30,329.37, 45,519.62 and 12,811.77 is: 19,228.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,329.37 : 45,519.62 = 12,811.77 : x
  2. Step 2: Convert to fraction form
    30,329.37/45,519.62 = 12,811.77/x
  3. Step 3: Cross multiply
    30,329.37x = 45,519.62 × 12,811.77
  4. Step 4: Simplify right side
    30,329.37x = 583,186,837.87
  5. Step 5: Solve for x
    x = 583,186,837.87/30,329.37
  6. Step 6: Final answer
    x = 19,228.45

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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.