Home / 21,221.96-29,265.94-14,048.60

Finding the Fourth Proportional to 21,221.96, 29,265.94 and 14,048.60

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Solution

The fourth proportional to 21,221.96, 29,265.94 and 14,048.60 is: 19,373.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,221.96 : 29,265.94 = 14,048.60 : x
  2. Step 2: Convert to fraction form
    21,221.96/29,265.94 = 14,048.60/x
  3. Step 3: Cross multiply
    21,221.96x = 29,265.94 × 14,048.60
  4. Step 4: Simplify right side
    21,221.96x = 411,145,484.68
  5. Step 5: Solve for x
    x = 411,145,484.68/21,221.96
  6. Step 6: Final answer
    x = 19,373.59

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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.