Home / 27,144.90-40,707.75-12,911.70

Finding the Fourth Proportional to 27,144.90, 40,707.75 and 12,911.70

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Solution

The fourth proportional to 27,144.90, 40,707.75 and 12,911.70 is: 19,362.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,144.90 : 40,707.75 = 12,911.70 : x
  2. Step 2: Convert to fraction form
    27,144.90/40,707.75 = 12,911.70/x
  3. Step 3: Cross multiply
    27,144.90x = 40,707.75 × 12,911.70
  4. Step 4: Simplify right side
    27,144.90x = 525,606,255.68
  5. Step 5: Solve for x
    x = 525,606,255.68/27,144.90
  6. Step 6: Final answer
    x = 19,362.98

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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.