Home / 30,002.45-45,003.65-8,941.94

Finding the Fourth Proportional to 30,002.45, 45,003.65 and 8,941.94

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Solution

The fourth proportional to 30,002.45, 45,003.65 and 8,941.94 is: 13,412.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,002.45 : 45,003.65 = 8,941.94 : x
  2. Step 2: Convert to fraction form
    30,002.45/45,003.65 = 8,941.94/x
  3. Step 3: Cross multiply
    30,002.45x = 45,003.65 × 8,941.94
  4. Step 4: Simplify right side
    30,002.45x = 402,420,072.94
  5. Step 5: Solve for x
    x = 402,420,072.94/30,002.45
  6. Step 6: Final answer
    x = 13,412.91

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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.