Home / 21,701.34-29,947.57-12,749.66

Finding the Fourth Proportional to 21,701.34, 29,947.57 and 12,749.66

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Solution

The fourth proportional to 21,701.34, 29,947.57 and 12,749.66 is: 17,594.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,701.34 : 29,947.57 = 12,749.66 : x
  2. Step 2: Convert to fraction form
    21,701.34/29,947.57 = 12,749.66/x
  3. Step 3: Cross multiply
    21,701.34x = 29,947.57 × 12,749.66
  4. Step 4: Simplify right side
    21,701.34x = 381,821,335.33
  5. Step 5: Solve for x
    x = 381,821,335.33/21,701.34
  6. Step 6: Final answer
    x = 17,594.37

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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.