Home / 21,443.56-29,590.62-12,011.92

Finding the Fourth Proportional to 21,443.56, 29,590.62 and 12,011.92

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Solution

The fourth proportional to 21,443.56, 29,590.62 and 12,011.92 is: 16,575.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,443.56 : 29,590.62 = 12,011.92 : x
  2. Step 2: Convert to fraction form
    21,443.56/29,590.62 = 12,011.92/x
  3. Step 3: Cross multiply
    21,443.56x = 29,590.62 × 12,011.92
  4. Step 4: Simplify right side
    21,443.56x = 355,440,160.19
  5. Step 5: Solve for x
    x = 355,440,160.19/21,443.56
  6. Step 6: Final answer
    x = 16,575.61

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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.