Home / 21,063.82-29,069.60-12,114.13

Finding the Fourth Proportional to 21,063.82, 29,069.60 and 12,114.13

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Solution

The fourth proportional to 21,063.82, 29,069.60 and 12,114.13 is: 16,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.82 : 29,069.60 = 12,114.13 : x
  2. Step 2: Convert to fraction form
    21,063.82/29,069.60 = 12,114.13/x
  3. Step 3: Cross multiply
    21,063.82x = 29,069.60 × 12,114.13
  4. Step 4: Simplify right side
    21,063.82x = 352,152,913.45
  5. Step 5: Solve for x
    x = 352,152,913.45/21,063.82
  6. Step 6: Final answer
    x = 16,718.38

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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.