Home / 20,655.76-30,983.10-7,508.38

Finding the Fourth Proportional to 20,655.76, 30,983.10 and 7,508.38

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Solution

The fourth proportional to 20,655.76, 30,983.10 and 7,508.38 is: 11,262.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.76 : 30,983.10 = 7,508.38 : x
  2. Step 2: Convert to fraction form
    20,655.76/30,983.10 = 7,508.38/x
  3. Step 3: Cross multiply
    20,655.76x = 30,983.10 × 7,508.38
  4. Step 4: Simplify right side
    20,655.76x = 232,632,888.38
  5. Step 5: Solve for x
    x = 232,632,888.38/20,655.76
  6. Step 6: Final answer
    x = 11,262.37

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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.