Home / 21,074.91-29,084.75-11,643.48

Finding the Fourth Proportional to 21,074.91, 29,084.75 and 11,643.48

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Solution

The fourth proportional to 21,074.91, 29,084.75 and 11,643.48 is: 16,068.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.91 : 29,084.75 = 11,643.48 : x
  2. Step 2: Convert to fraction form
    21,074.91/29,084.75 = 11,643.48/x
  3. Step 3: Cross multiply
    21,074.91x = 29,084.75 × 11,643.48
  4. Step 4: Simplify right side
    21,074.91x = 338,647,646.71
  5. Step 5: Solve for x
    x = 338,647,646.71/21,074.91
  6. Step 6: Final answer
    x = 16,068.76

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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.