Home / 30,558.78-45,845.07-13,914.36

Finding the Fourth Proportional to 30,558.78, 45,845.07 and 13,914.36

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Solution

The fourth proportional to 30,558.78, 45,845.07 and 13,914.36 is: 20,874.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,558.78 : 45,845.07 = 13,914.36 : x
  2. Step 2: Convert to fraction form
    30,558.78/45,845.07 = 13,914.36/x
  3. Step 3: Cross multiply
    30,558.78x = 45,845.07 × 13,914.36
  4. Step 4: Simplify right side
    30,558.78x = 637,904,808.21
  5. Step 5: Solve for x
    x = 637,904,808.21/30,558.78
  6. Step 6: Final answer
    x = 20,874.68

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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.