Home / 22,234.08-30,686.34-12,800.80

Finding the Fourth Proportional to 22,234.08, 30,686.34 and 12,800.80

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Solution

The fourth proportional to 22,234.08, 30,686.34 and 12,800.80 is: 17,667.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,234.08 : 30,686.34 = 12,800.80 : x
  2. Step 2: Convert to fraction form
    22,234.08/30,686.34 = 12,800.80/x
  3. Step 3: Cross multiply
    22,234.08x = 30,686.34 × 12,800.80
  4. Step 4: Simplify right side
    22,234.08x = 392,809,701.07
  5. Step 5: Solve for x
    x = 392,809,701.07/22,234.08
  6. Step 6: Final answer
    x = 17,667.01

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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.