Home / 30,114.78-45,163.64-19,004.82

Finding the Fourth Proportional to 30,114.78, 45,163.64 and 19,004.82

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Solution

The fourth proportional to 30,114.78, 45,163.64 and 19,004.82 is: 28,501.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,114.78 : 45,163.64 = 19,004.82 : x
  2. Step 2: Convert to fraction form
    30,114.78/45,163.64 = 19,004.82/x
  3. Step 3: Cross multiply
    30,114.78x = 45,163.64 × 19,004.82
  4. Step 4: Simplify right side
    30,114.78x = 858,326,848.74
  5. Step 5: Solve for x
    x = 858,326,848.74/30,114.78
  6. Step 6: Final answer
    x = 28,501.85

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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.