Home / 21,684.52-29,925.09-12,253.30

Finding the Fourth Proportional to 21,684.52, 29,925.09 and 12,253.30

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Solution

The fourth proportional to 21,684.52, 29,925.09 and 12,253.30 is: 16,909.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,684.52 : 29,925.09 = 12,253.30 : x
  2. Step 2: Convert to fraction form
    21,684.52/29,925.09 = 12,253.30/x
  3. Step 3: Cross multiply
    21,684.52x = 29,925.09 × 12,253.30
  4. Step 4: Simplify right side
    21,684.52x = 366,681,105.30
  5. Step 5: Solve for x
    x = 366,681,105.30/21,684.52
  6. Step 6: Final answer
    x = 16,909.81

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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.