Home / 21,684.92-29,925.24-12,125.16

Finding the Fourth Proportional to 21,684.92, 29,925.24 and 12,125.16

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Solution

The fourth proportional to 21,684.92, 29,925.24 and 12,125.16 is: 16,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,684.92 : 29,925.24 = 12,125.16 : x
  2. Step 2: Convert to fraction form
    21,684.92/29,925.24 = 12,125.16/x
  3. Step 3: Cross multiply
    21,684.92x = 29,925.24 × 12,125.16
  4. Step 4: Simplify right side
    21,684.92x = 362,848,323.77
  5. Step 5: Solve for x
    x = 362,848,323.77/21,684.92
  6. Step 6: Final answer
    x = 16,732.75

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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.