Home / 21,323.56-29,426.52-11,891.92

Finding the Fourth Proportional to 21,323.56, 29,426.52 and 11,891.92

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Solution

The fourth proportional to 21,323.56, 29,426.52 and 11,891.92 is: 16,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323.56 : 29,426.52 = 11,891.92 : x
  2. Step 2: Convert to fraction form
    21,323.56/29,426.52 = 11,891.92/x
  3. Step 3: Cross multiply
    21,323.56x = 29,426.52 × 11,891.92
  4. Step 4: Simplify right side
    21,323.56x = 349,937,821.72
  5. Step 5: Solve for x
    x = 349,937,821.72/21,323.56
  6. Step 6: Final answer
    x = 16,410.85

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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.