Home / 25,749.91-38,615.14-11,889.19

Finding the Fourth Proportional to 25,749.91, 38,615.14 and 11,889.19

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Solution

The fourth proportional to 25,749.91, 38,615.14 and 11,889.19 is: 17,829.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,749.91 : 38,615.14 = 11,889.19 : x
  2. Step 2: Convert to fraction form
    25,749.91/38,615.14 = 11,889.19/x
  3. Step 3: Cross multiply
    25,749.91x = 38,615.14 × 11,889.19
  4. Step 4: Simplify right side
    25,749.91x = 459,102,736.34
  5. Step 5: Solve for x
    x = 459,102,736.34/25,749.91
  6. Step 6: Final answer
    x = 17,829.29

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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.