Home / 21,068.73-29,074.86-11,508.75

Finding the Fourth Proportional to 21,068.73, 29,074.86 and 11,508.75

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Solution

The fourth proportional to 21,068.73, 29,074.86 and 11,508.75 is: 15,882.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.73 : 29,074.86 = 11,508.75 : x
  2. Step 2: Convert to fraction form
    21,068.73/29,074.86 = 11,508.75/x
  3. Step 3: Cross multiply
    21,068.73x = 29,074.86 × 11,508.75
  4. Step 4: Simplify right side
    21,068.73x = 334,615,295.03
  5. Step 5: Solve for x
    x = 334,615,295.03/21,068.73
  6. Step 6: Final answer
    x = 15,882.08

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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.