Home / 21,336.47-29,444.12-11,776.44

Finding the Fourth Proportional to 21,336.47, 29,444.12 and 11,776.44

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Solution

The fourth proportional to 21,336.47, 29,444.12 and 11,776.44 is: 16,251.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.47 : 29,444.12 = 11,776.44 : x
  2. Step 2: Convert to fraction form
    21,336.47/29,444.12 = 11,776.44/x
  3. Step 3: Cross multiply
    21,336.47x = 29,444.12 × 11,776.44
  4. Step 4: Simplify right side
    21,336.47x = 346,746,853.65
  5. Step 5: Solve for x
    x = 346,746,853.65/21,336.47
  6. Step 6: Final answer
    x = 16,251.37

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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.