Home / 21,616.62-29,833.35-12,671.69

Finding the Fourth Proportional to 21,616.62, 29,833.35 and 12,671.69

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Solution

The fourth proportional to 21,616.62, 29,833.35 and 12,671.69 is: 17,488.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,616.62 : 29,833.35 = 12,671.69 : x
  2. Step 2: Convert to fraction form
    21,616.62/29,833.35 = 12,671.69/x
  3. Step 3: Cross multiply
    21,616.62x = 29,833.35 × 12,671.69
  4. Step 4: Simplify right side
    21,616.62x = 378,038,962.86
  5. Step 5: Solve for x
    x = 378,038,962.86/21,616.62
  6. Step 6: Final answer
    x = 17,488.35

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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.