Home / 27,138.24-40,686.48-13,091.04

Finding the Fourth Proportional to 27,138.24, 40,686.48 and 13,091.04

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Solution

The fourth proportional to 27,138.24, 40,686.48 and 13,091.04 is: 19,626.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,138.24 : 40,686.48 = 13,091.04 : x
  2. Step 2: Convert to fraction form
    27,138.24/40,686.48 = 13,091.04/x
  3. Step 3: Cross multiply
    27,138.24x = 40,686.48 × 13,091.04
  4. Step 4: Simplify right side
    27,138.24x = 532,628,337.14
  5. Step 5: Solve for x
    x = 532,628,337.14/27,138.24
  6. Step 6: Final answer
    x = 19,626.49

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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.