Home / 21,634.79-29,855.93-12,203.35

Finding the Fourth Proportional to 21,634.79, 29,855.93 and 12,203.35

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Solution

The fourth proportional to 21,634.79, 29,855.93 and 12,203.35 is: 16,840.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,634.79 : 29,855.93 = 12,203.35 : x
  2. Step 2: Convert to fraction form
    21,634.79/29,855.93 = 12,203.35/x
  3. Step 3: Cross multiply
    21,634.79x = 29,855.93 × 12,203.35
  4. Step 4: Simplify right side
    21,634.79x = 364,342,227.71
  5. Step 5: Solve for x
    x = 364,342,227.71/21,634.79
  6. Step 6: Final answer
    x = 16,840.58

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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.