Home / 20,998.77-31,495.38-6,955.27

Finding the Fourth Proportional to 20,998.77, 31,495.38 and 6,955.27

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Solution

The fourth proportional to 20,998.77, 31,495.38 and 6,955.27 is: 10,431.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,998.77 : 31,495.38 = 6,955.27 : x
  2. Step 2: Convert to fraction form
    20,998.77/31,495.38 = 6,955.27/x
  3. Step 3: Cross multiply
    20,998.77x = 31,495.38 × 6,955.27
  4. Step 4: Simplify right side
    20,998.77x = 219,058,805.96
  5. Step 5: Solve for x
    x = 219,058,805.96/20,998.77
  6. Step 6: Final answer
    x = 10,431.98

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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.