Home / 21,074.51-29,083.53-11,643.59

Finding the Fourth Proportional to 21,074.51, 29,083.53 and 11,643.59

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Solution

The fourth proportional to 21,074.51, 29,083.53 and 11,643.59 is: 16,068.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.51 : 29,083.53 = 11,643.59 : x
  2. Step 2: Convert to fraction form
    21,074.51/29,083.53 = 11,643.59/x
  3. Step 3: Cross multiply
    21,074.51x = 29,083.53 × 11,643.59
  4. Step 4: Simplify right side
    21,074.51x = 338,636,495.44
  5. Step 5: Solve for x
    x = 338,636,495.44/21,074.51
  6. Step 6: Final answer
    x = 16,068.54

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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.