Home / 21,065.32-29,069.68-11,504.84

Finding the Fourth Proportional to 21,065.32, 29,069.68 and 11,504.84

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Solution

The fourth proportional to 21,065.32, 29,069.68 and 11,504.84 is: 15,876.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065.32 : 29,069.68 = 11,504.84 : x
  2. Step 2: Convert to fraction form
    21,065.32/29,069.68 = 11,504.84/x
  3. Step 3: Cross multiply
    21,065.32x = 29,069.68 × 11,504.84
  4. Step 4: Simplify right side
    21,065.32x = 334,442,017.25
  5. Step 5: Solve for x
    x = 334,442,017.25/21,065.32
  6. Step 6: Final answer
    x = 15,876.43

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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.