Home / 21,056.63-31,591.76-14,738.09

Finding the Fourth Proportional to 21,056.63, 31,591.76 and 14,738.09

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Solution

The fourth proportional to 21,056.63, 31,591.76 and 14,738.09 is: 22,111.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056.63 : 31,591.76 = 14,738.09 : x
  2. Step 2: Convert to fraction form
    21,056.63/31,591.76 = 14,738.09/x
  3. Step 3: Cross multiply
    21,056.63x = 31,591.76 × 14,738.09
  4. Step 4: Simplify right side
    21,056.63x = 465,601,970.49
  5. Step 5: Solve for x
    x = 465,601,970.49/21,056.63
  6. Step 6: Final answer
    x = 22,111.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.