Home / 27,142.49-40,707.36-13,806.65

Finding the Fourth Proportional to 27,142.49, 40,707.36 and 13,806.65

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Solution

The fourth proportional to 27,142.49, 40,707.36 and 13,806.65 is: 20,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,142.49 : 40,707.36 = 13,806.65 : x
  2. Step 2: Convert to fraction form
    27,142.49/40,707.36 = 13,806.65/x
  3. Step 3: Cross multiply
    27,142.49x = 40,707.36 × 13,806.65
  4. Step 4: Simplify right side
    27,142.49x = 562,032,373.71
  5. Step 5: Solve for x
    x = 562,032,373.71/27,142.49
  6. Step 6: Final answer
    x = 20,706.73

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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.