Home / 21,982.34-30,337.80-12,552.32

Finding the Fourth Proportional to 21,982.34, 30,337.80 and 12,552.32

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Solution

The fourth proportional to 21,982.34, 30,337.80 and 12,552.32 is: 17,323.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.34 : 30,337.80 = 12,552.32 : x
  2. Step 2: Convert to fraction form
    21,982.34/30,337.80 = 12,552.32/x
  3. Step 3: Cross multiply
    21,982.34x = 30,337.80 × 12,552.32
  4. Step 4: Simplify right side
    21,982.34x = 380,809,773.70
  5. Step 5: Solve for x
    x = 380,809,773.70/21,982.34
  6. Step 6: Final answer
    x = 17,323.44

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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.