Home / 20,995.05-31,500.24-9,755.58

Finding the Fourth Proportional to 20,995.05, 31,500.24 and 9,755.58

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Solution

The fourth proportional to 20,995.05, 31,500.24 and 9,755.58 is: 14,636.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995.05 : 31,500.24 = 9,755.58 : x
  2. Step 2: Convert to fraction form
    20,995.05/31,500.24 = 9,755.58/x
  3. Step 3: Cross multiply
    20,995.05x = 31,500.24 × 9,755.58
  4. Step 4: Simplify right side
    20,995.05x = 307,303,111.34
  5. Step 5: Solve for x
    x = 307,303,111.34/20,995.05
  6. Step 6: Final answer
    x = 14,636.93

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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.