Home / 36,558.40-54,895.20-21,006.40

Finding the Fourth Proportional to 36,558.40, 54,895.20 and 21,006.40

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Solution

The fourth proportional to 36,558.40, 54,895.20 and 21,006.40 is: 31,542.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,558.40 : 54,895.20 = 21,006.40 : x
  2. Step 2: Convert to fraction form
    36,558.40/54,895.20 = 21,006.40/x
  3. Step 3: Cross multiply
    36,558.40x = 54,895.20 × 21,006.40
  4. Step 4: Simplify right side
    36,558.40x = 1,153,150,529.28
  5. Step 5: Solve for x
    x = 1,153,150,529.28/36,558.40
  6. Step 6: Final answer
    x = 31,542.70

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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.