Home / 21,795.71-30,087.11-14,731.70

Finding the Fourth Proportional to 21,795.71, 30,087.11 and 14,731.70

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Solution

The fourth proportional to 21,795.71, 30,087.11 and 14,731.70 is: 20,335.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,795.71 : 30,087.11 = 14,731.70 : x
  2. Step 2: Convert to fraction form
    21,795.71/30,087.11 = 14,731.70/x
  3. Step 3: Cross multiply
    21,795.71x = 30,087.11 × 14,731.70
  4. Step 4: Simplify right side
    21,795.71x = 443,234,164.78
  5. Step 5: Solve for x
    x = 443,234,164.78/21,795.71
  6. Step 6: Final answer
    x = 20,335.85

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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.