Home / 21,481.03-29,641.84-12,047.77

Finding the Fourth Proportional to 21,481.03, 29,641.84 and 12,047.77

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Solution

The fourth proportional to 21,481.03, 29,641.84 and 12,047.77 is: 16,624.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481.03 : 29,641.84 = 12,047.77 : x
  2. Step 2: Convert to fraction form
    21,481.03/29,641.84 = 12,047.77/x
  3. Step 3: Cross multiply
    21,481.03x = 29,641.84 × 12,047.77
  4. Step 4: Simplify right side
    21,481.03x = 357,118,070.70
  5. Step 5: Solve for x
    x = 357,118,070.70/21,481.03
  6. Step 6: Final answer
    x = 16,624.81

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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.