Home / 27,960.30-41,940.45-10,429.20

Finding the Fourth Proportional to 27,960.30, 41,940.45 and 10,429.20

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Solution

The fourth proportional to 27,960.30, 41,940.45 and 10,429.20 is: 15,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960.30 : 41,940.45 = 10,429.20 : x
  2. Step 2: Convert to fraction form
    27,960.30/41,940.45 = 10,429.20/x
  3. Step 3: Cross multiply
    27,960.30x = 41,940.45 × 10,429.20
  4. Step 4: Simplify right side
    27,960.30x = 437,405,341.14
  5. Step 5: Solve for x
    x = 437,405,341.14/27,960.30
  6. Step 6: Final answer
    x = 15,643.80

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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.