Home / 21,735.39-29,991.68-12,535.35

Finding the Fourth Proportional to 21,735.39, 29,991.68 and 12,535.35

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Solution

The fourth proportional to 21,735.39, 29,991.68 and 12,535.35 is: 17,296.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,735.39 : 29,991.68 = 12,535.35 : x
  2. Step 2: Convert to fraction form
    21,735.39/29,991.68 = 12,535.35/x
  3. Step 3: Cross multiply
    21,735.39x = 29,991.68 × 12,535.35
  4. Step 4: Simplify right side
    21,735.39x = 375,956,143.21
  5. Step 5: Solve for x
    x = 375,956,143.21/21,735.39
  6. Step 6: Final answer
    x = 17,296.96

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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.