Home / 27,785.10-38,303.91-17,168.70

Finding the Fourth Proportional to 27,785.10, 38,303.91 and 17,168.70

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Solution

The fourth proportional to 27,785.10, 38,303.91 and 17,168.70 is: 23,668.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,785.10 : 38,303.91 = 17,168.70 : x
  2. Step 2: Convert to fraction form
    27,785.10/38,303.91 = 17,168.70/x
  3. Step 3: Cross multiply
    27,785.10x = 38,303.91 × 17,168.70
  4. Step 4: Simplify right side
    27,785.10x = 657,628,339.62
  5. Step 5: Solve for x
    x = 657,628,339.62/27,785.10
  6. Step 6: Final answer
    x = 23,668.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.