Home / 21,944.95-30,284.30-12,385.36

Finding the Fourth Proportional to 21,944.95, 30,284.30 and 12,385.36

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Solution

The fourth proportional to 21,944.95, 30,284.30 and 12,385.36 is: 17,091.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,944.95 : 30,284.30 = 12,385.36 : x
  2. Step 2: Convert to fraction form
    21,944.95/30,284.30 = 12,385.36/x
  3. Step 3: Cross multiply
    21,944.95x = 30,284.30 × 12,385.36
  4. Step 4: Simplify right side
    21,944.95x = 375,082,026.67
  5. Step 5: Solve for x
    x = 375,082,026.67/21,944.95
  6. Step 6: Final answer
    x = 17,091.95

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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.