Home / 21,925.13-30,257.36-12,494.30

Finding the Fourth Proportional to 21,925.13, 30,257.36 and 12,494.30

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Solution

The fourth proportional to 21,925.13, 30,257.36 and 12,494.30 is: 17,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,925.13 : 30,257.36 = 12,494.30 : x
  2. Step 2: Convert to fraction form
    21,925.13/30,257.36 = 12,494.30/x
  3. Step 3: Cross multiply
    21,925.13x = 30,257.36 × 12,494.30
  4. Step 4: Simplify right side
    21,925.13x = 378,044,413.00
  5. Step 5: Solve for x
    x = 378,044,413.00/21,925.13
  6. Step 6: Final answer
    x = 17,242.52

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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.