Home / 30,678.96-46,018.52-9,331.86

Finding the Fourth Proportional to 30,678.96, 46,018.52 and 9,331.86

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Solution

The fourth proportional to 30,678.96, 46,018.52 and 9,331.86 is: 13,997.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,678.96 : 46,018.52 = 9,331.86 : x
  2. Step 2: Convert to fraction form
    30,678.96/46,018.52 = 9,331.86/x
  3. Step 3: Cross multiply
    30,678.96x = 46,018.52 × 9,331.86
  4. Step 4: Simplify right side
    30,678.96x = 429,438,339.39
  5. Step 5: Solve for x
    x = 429,438,339.39/30,678.96
  6. Step 6: Final answer
    x = 13,997.81

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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.