Home / 21,276.68-29,357.37-12,323.65

Finding the Fourth Proportional to 21,276.68, 29,357.37 and 12,323.65

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Solution

The fourth proportional to 21,276.68, 29,357.37 and 12,323.65 is: 17,004.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.68 : 29,357.37 = 12,323.65 : x
  2. Step 2: Convert to fraction form
    21,276.68/29,357.37 = 12,323.65/x
  3. Step 3: Cross multiply
    21,276.68x = 29,357.37 × 12,323.65
  4. Step 4: Simplify right side
    21,276.68x = 361,789,891.18
  5. Step 5: Solve for x
    x = 361,789,891.18/21,276.68
  6. Step 6: Final answer
    x = 17,004.06

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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.