Home / 21,063.49-31,572.74-10,512.73

Finding the Fourth Proportional to 21,063.49, 31,572.74 and 10,512.73

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Solution

The fourth proportional to 21,063.49, 31,572.74 and 10,512.73 is: 15,757.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.49 : 31,572.74 = 10,512.73 : x
  2. Step 2: Convert to fraction form
    21,063.49/31,572.74 = 10,512.73/x
  3. Step 3: Cross multiply
    21,063.49x = 31,572.74 × 10,512.73
  4. Step 4: Simplify right side
    21,063.49x = 331,915,533.12
  5. Step 5: Solve for x
    x = 331,915,533.12/21,063.49
  6. Step 6: Final answer
    x = 15,757.86

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1.5x scale

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.