Home / 23,105.66-31,875.53-13,668.75

Finding the Fourth Proportional to 23,105.66, 31,875.53 and 13,668.75

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Solution

The fourth proportional to 23,105.66, 31,875.53 and 13,668.75 is: 18,856.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,105.66 : 31,875.53 = 13,668.75 : x
  2. Step 2: Convert to fraction form
    23,105.66/31,875.53 = 13,668.75/x
  3. Step 3: Cross multiply
    23,105.66x = 31,875.53 × 13,668.75
  4. Step 4: Simplify right side
    23,105.66x = 435,698,582.34
  5. Step 5: Solve for x
    x = 435,698,582.34/23,105.66
  6. Step 6: Final answer
    x = 18,856.79

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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.