Home / 22,208.22-30,654.18-12,783.06

Finding the Fourth Proportional to 22,208.22, 30,654.18 and 12,783.06

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Solution

The fourth proportional to 22,208.22, 30,654.18 and 12,783.06 is: 17,644.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,208.22 : 30,654.18 = 12,783.06 : x
  2. Step 2: Convert to fraction form
    22,208.22/30,654.18 = 12,783.06/x
  3. Step 3: Cross multiply
    22,208.22x = 30,654.18 × 12,783.06
  4. Step 4: Simplify right side
    22,208.22x = 391,854,222.19
  5. Step 5: Solve for x
    x = 391,854,222.19/22,208.22
  6. Step 6: Final answer
    x = 17,644.56

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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.