Home / 22,306.89-30,786.09-13,354.39

Finding the Fourth Proportional to 22,306.89, 30,786.09 and 13,354.39

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Solution

The fourth proportional to 22,306.89, 30,786.09 and 13,354.39 is: 18,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,306.89 : 30,786.09 = 13,354.39 : x
  2. Step 2: Convert to fraction form
    22,306.89/30,786.09 = 13,354.39/x
  3. Step 3: Cross multiply
    22,306.89x = 30,786.09 × 13,354.39
  4. Step 4: Simplify right side
    22,306.89x = 411,129,440.84
  5. Step 5: Solve for x
    x = 411,129,440.84/22,306.89
  6. Step 6: Final answer
    x = 18,430.60

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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.