Home / 21,937.34-30,273.52-12,379.25

Finding the Fourth Proportional to 21,937.34, 30,273.52 and 12,379.25

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Solution

The fourth proportional to 21,937.34, 30,273.52 and 12,379.25 is: 17,083.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,937.34 : 30,273.52 = 12,379.25 : x
  2. Step 2: Convert to fraction form
    21,937.34/30,273.52 = 12,379.25/x
  3. Step 3: Cross multiply
    21,937.34x = 30,273.52 × 12,379.25
  4. Step 4: Simplify right side
    21,937.34x = 374,763,259.20
  5. Step 5: Solve for x
    x = 374,763,259.20/21,937.34
  6. Step 6: Final answer
    x = 17,083.35

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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.