Home / 20,551.30-30,938.94-14,018.64

Finding the Fourth Proportional to 20,551.30, 30,938.94 and 14,018.64

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Solution

The fourth proportional to 20,551.30, 30,938.94 and 14,018.64 is: 21,104.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.30 : 30,938.94 = 14,018.64 : x
  2. Step 2: Convert to fraction form
    20,551.30/30,938.94 = 14,018.64/x
  3. Step 3: Cross multiply
    20,551.30x = 30,938.94 × 14,018.64
  4. Step 4: Simplify right side
    20,551.30x = 433,721,861.84
  5. Step 5: Solve for x
    x = 433,721,861.84/20,551.30
  6. Step 6: Final answer
    x = 21,104.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.