Home / 19,724.15-27,203.90-12,651.23

Finding the Fourth Proportional to 19,724.15, 27,203.90 and 12,651.23

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Solution

The fourth proportional to 19,724.15, 27,203.90 and 12,651.23 is: 17,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.15 : 27,203.90 = 12,651.23 : x
  2. Step 2: Convert to fraction form
    19,724.15/27,203.90 = 12,651.23/x
  3. Step 3: Cross multiply
    19,724.15x = 27,203.90 × 12,651.23
  4. Step 4: Simplify right side
    19,724.15x = 344,162,596.52
  5. Step 5: Solve for x
    x = 344,162,596.52/19,724.15
  6. Step 6: Final answer
    x = 17,448.80

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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.