Home / 21,272.63-29,356.43-11,841.39

Finding the Fourth Proportional to 21,272.63, 29,356.43 and 11,841.39

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Solution

The fourth proportional to 21,272.63, 29,356.43 and 11,841.39 is: 16,341.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.63 : 29,356.43 = 11,841.39 : x
  2. Step 2: Convert to fraction form
    21,272.63/29,356.43 = 11,841.39/x
  3. Step 3: Cross multiply
    21,272.63x = 29,356.43 × 11,841.39
  4. Step 4: Simplify right side
    21,272.63x = 347,620,877.43
  5. Step 5: Solve for x
    x = 347,620,877.43/21,272.63
  6. Step 6: Final answer
    x = 16,341.23

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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.