Home / 21,897.46-30,190.82-14,331.79

Finding the Fourth Proportional to 21,897.46, 30,190.82 and 14,331.79

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Solution

The fourth proportional to 21,897.46, 30,190.82 and 14,331.79 is: 19,759.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,897.46 : 30,190.82 = 14,331.79 : x
  2. Step 2: Convert to fraction form
    21,897.46/30,190.82 = 14,331.79/x
  3. Step 3: Cross multiply
    21,897.46x = 30,190.82 × 14,331.79
  4. Step 4: Simplify right side
    21,897.46x = 432,688,492.17
  5. Step 5: Solve for x
    x = 432,688,492.17/21,897.46
  6. Step 6: Final answer
    x = 19,759.76

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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.