Home / 30,003.45-45,005.15-8,942.94

Finding the Fourth Proportional to 30,003.45, 45,005.15 and 8,942.94

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Solution

The fourth proportional to 30,003.45, 45,005.15 and 8,942.94 is: 13,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,003.45 : 45,005.15 = 8,942.94 : x
  2. Step 2: Convert to fraction form
    30,003.45/45,005.15 = 8,942.94/x
  3. Step 3: Cross multiply
    30,003.45x = 45,005.15 × 8,942.94
  4. Step 4: Simplify right side
    30,003.45x = 402,478,356.14
  5. Step 5: Solve for x
    x = 402,478,356.14/30,003.45
  6. Step 6: Final answer
    x = 13,414.40

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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.