Home / 21,404.43-29,544.88-14,699.45

Finding the Fourth Proportional to 21,404.43, 29,544.88 and 14,699.45

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Solution

The fourth proportional to 21,404.43, 29,544.88 and 14,699.45 is: 20,289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.43 : 29,544.88 = 14,699.45 : x
  2. Step 2: Convert to fraction form
    21,404.43/29,544.88 = 14,699.45/x
  3. Step 3: Cross multiply
    21,404.43x = 29,544.88 × 14,699.45
  4. Step 4: Simplify right side
    21,404.43x = 434,293,486.32
  5. Step 5: Solve for x
    x = 434,293,486.32/21,404.43
  6. Step 6: Final answer
    x = 20,289.89

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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.