Home / 21,958.48-30,241.92-18,973.36

Finding the Fourth Proportional to 21,958.48, 30,241.92 and 18,973.36

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Solution

The fourth proportional to 21,958.48, 30,241.92 and 18,973.36 is: 26,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.48 : 30,241.92 = 18,973.36 : x
  2. Step 2: Convert to fraction form
    21,958.48/30,241.92 = 18,973.36/x
  3. Step 3: Cross multiply
    21,958.48x = 30,241.92 × 18,973.36
  4. Step 4: Simplify right side
    21,958.48x = 573,790,835.25
  5. Step 5: Solve for x
    x = 573,790,835.25/21,958.48
  6. Step 6: Final answer
    x = 26,130.72

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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.