Home / 21,962.54-30,306.39-13,008.53

Finding the Fourth Proportional to 21,962.54, 30,306.39 and 13,008.53

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Solution

The fourth proportional to 21,962.54, 30,306.39 and 13,008.53 is: 17,950.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,962.54 : 30,306.39 = 13,008.53 : x
  2. Step 2: Convert to fraction form
    21,962.54/30,306.39 = 13,008.53/x
  3. Step 3: Cross multiply
    21,962.54x = 30,306.39 × 13,008.53
  4. Step 4: Simplify right side
    21,962.54x = 394,241,610.49
  5. Step 5: Solve for x
    x = 394,241,610.49/21,962.54
  6. Step 6: Final answer
    x = 17,950.64

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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.