Home / 21,683.92-29,928.82-14,117.08

Finding the Fourth Proportional to 21,683.92, 29,928.82 and 14,117.08

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Solution

The fourth proportional to 21,683.92, 29,928.82 and 14,117.08 is: 19,484.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,683.92 : 29,928.82 = 14,117.08 : x
  2. Step 2: Convert to fraction form
    21,683.92/29,928.82 = 14,117.08/x
  3. Step 3: Cross multiply
    21,683.92x = 29,928.82 × 14,117.08
  4. Step 4: Simplify right side
    21,683.92x = 422,507,546.25
  5. Step 5: Solve for x
    x = 422,507,546.25/21,683.92
  6. Step 6: Final answer
    x = 19,484.83

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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.