Home / 21,822.58-30,116.03-12,392.02

Finding the Fourth Proportional to 21,822.58, 30,116.03 and 12,392.02

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Solution

The fourth proportional to 21,822.58, 30,116.03 and 12,392.02 is: 17,101.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,822.58 : 30,116.03 = 12,392.02 : x
  2. Step 2: Convert to fraction form
    21,822.58/30,116.03 = 12,392.02/x
  3. Step 3: Cross multiply
    21,822.58x = 30,116.03 × 12,392.02
  4. Step 4: Simplify right side
    21,822.58x = 373,198,446.08
  5. Step 5: Solve for x
    x = 373,198,446.08/21,822.58
  6. Step 6: Final answer
    x = 17,101.48

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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.