Home / 30,327.62-45,460.85-19,212.80

Finding the Fourth Proportional to 30,327.62, 45,460.85 and 19,212.80

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Solution

The fourth proportional to 30,327.62, 45,460.85 and 19,212.80 is: 28,799.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,327.62 : 45,460.85 = 19,212.80 : x
  2. Step 2: Convert to fraction form
    30,327.62/45,460.85 = 19,212.80/x
  3. Step 3: Cross multiply
    30,327.62x = 45,460.85 × 19,212.80
  4. Step 4: Simplify right side
    30,327.62x = 873,429,895.51
  5. Step 5: Solve for x
    x = 873,429,895.51/30,327.62
  6. Step 6: Final answer
    x = 28,799.82

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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.