Home / 30,021.48-45,034.73-8,960.13

Finding the Fourth Proportional to 30,021.48, 45,034.73 and 8,960.13

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Solution

The fourth proportional to 30,021.48, 45,034.73 and 8,960.13 is: 13,440.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,021.48 : 45,034.73 = 8,960.13 : x
  2. Step 2: Convert to fraction form
    30,021.48/45,034.73 = 8,960.13/x
  3. Step 3: Cross multiply
    30,021.48x = 45,034.73 × 8,960.13
  4. Step 4: Simplify right side
    30,021.48x = 403,517,057.72
  5. Step 5: Solve for x
    x = 403,517,057.72/30,021.48
  6. Step 6: Final answer
    x = 13,440.94

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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.