Home / 21,434.82-29,560.32-14,708.58

Finding the Fourth Proportional to 21,434.82, 29,560.32 and 14,708.58

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Solution

The fourth proportional to 21,434.82, 29,560.32 and 14,708.58 is: 20,284.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,434.82 : 29,560.32 = 14,708.58 : x
  2. Step 2: Convert to fraction form
    21,434.82/29,560.32 = 14,708.58/x
  3. Step 3: Cross multiply
    21,434.82x = 29,560.32 × 14,708.58
  4. Step 4: Simplify right side
    21,434.82x = 434,790,331.55
  5. Step 5: Solve for x
    x = 434,790,331.55/21,434.82
  6. Step 6: Final answer
    x = 20,284.30

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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.