Home / 20,954.50-31,433.64-5,372.26

Finding the Fourth Proportional to 20,954.50, 31,433.64 and 5,372.26

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Solution

The fourth proportional to 20,954.50, 31,433.64 and 5,372.26 is: 8,058.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.50 : 31,433.64 = 5,372.26 : x
  2. Step 2: Convert to fraction form
    20,954.50/31,433.64 = 5,372.26/x
  3. Step 3: Cross multiply
    20,954.50x = 31,433.64 × 5,372.26
  4. Step 4: Simplify right side
    20,954.50x = 168,869,686.83
  5. Step 5: Solve for x
    x = 168,869,686.83/20,954.50
  6. Step 6: Final answer
    x = 8,058.87

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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.