Home / 21,290.28-29,344.59-14,564.31

Finding the Fourth Proportional to 21,290.28, 29,344.59 and 14,564.31

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Solution

The fourth proportional to 21,290.28, 29,344.59 and 14,564.31 is: 20,074.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290.28 : 29,344.59 = 14,564.31 : x
  2. Step 2: Convert to fraction form
    21,290.28/29,344.59 = 14,564.31/x
  3. Step 3: Cross multiply
    21,290.28x = 29,344.59 × 14,564.31
  4. Step 4: Simplify right side
    21,290.28x = 427,383,705.58
  5. Step 5: Solve for x
    x = 427,383,705.58/21,290.28
  6. Step 6: Final answer
    x = 20,074.12

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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.