Home / 21,749.26-30,013.06-12,675.48

Finding the Fourth Proportional to 21,749.26, 30,013.06 and 12,675.48

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Solution

The fourth proportional to 21,749.26, 30,013.06 and 12,675.48 is: 17,491.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,749.26 : 30,013.06 = 12,675.48 : x
  2. Step 2: Convert to fraction form
    21,749.26/30,013.06 = 12,675.48/x
  3. Step 3: Cross multiply
    21,749.26x = 30,013.06 × 12,675.48
  4. Step 4: Simplify right side
    21,749.26x = 380,429,941.77
  5. Step 5: Solve for x
    x = 380,429,941.77/21,749.26
  6. Step 6: Final answer
    x = 17,491.63

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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.