Home / 35,406.08-53,065.37-21,321.80

Finding the Fourth Proportional to 35,406.08, 53,065.37 and 21,321.80

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Solution

The fourth proportional to 35,406.08, 53,065.37 and 21,321.80 is: 31,956.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,406.08 : 53,065.37 = 21,321.80 : x
  2. Step 2: Convert to fraction form
    35,406.08/53,065.37 = 21,321.80/x
  3. Step 3: Cross multiply
    35,406.08x = 53,065.37 × 21,321.80
  4. Step 4: Simplify right side
    35,406.08x = 1,131,448,834.13
  5. Step 5: Solve for x
    x = 1,131,448,834.13/35,406.08
  6. Step 6: Final answer
    x = 31,956.35

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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.