Home / 21,214.51-29,276.49-12,262.39

Finding the Fourth Proportional to 21,214.51, 29,276.49 and 12,262.39

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Solution

The fourth proportional to 21,214.51, 29,276.49 and 12,262.39 is: 16,922.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.51 : 29,276.49 = 12,262.39 : x
  2. Step 2: Convert to fraction form
    21,214.51/29,276.49 = 12,262.39/x
  3. Step 3: Cross multiply
    21,214.51x = 29,276.49 × 12,262.39
  4. Step 4: Simplify right side
    21,214.51x = 358,999,738.21
  5. Step 5: Solve for x
    x = 358,999,738.21/21,214.51
  6. Step 6: Final answer
    x = 16,922.37

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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.