Home / 20,510.49-30,765.69-15,837.33

Finding the Fourth Proportional to 20,510.49, 30,765.69 and 15,837.33

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Solution

The fourth proportional to 20,510.49, 30,765.69 and 15,837.33 is: 23,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510.49 : 30,765.69 = 15,837.33 : x
  2. Step 2: Convert to fraction form
    20,510.49/30,765.69 = 15,837.33/x
  3. Step 3: Cross multiply
    20,510.49x = 30,765.69 × 15,837.33
  4. Step 4: Simplify right side
    20,510.49x = 487,246,385.21
  5. Step 5: Solve for x
    x = 487,246,385.21/20,510.49
  6. Step 6: Final answer
    x = 23,755.96

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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.