Home / 43,392.24-65,125.80-21,222

Finding the Fourth Proportional to 43,392.24, 65,125.80 and 21,222

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Solution

The fourth proportional to 43,392.24, 65,125.80 and 21,222 is: 31,851.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,392.24 : 65,125.80 = 21,222 : x
  2. Step 2: Convert to fraction form
    43,392.24/65,125.80 = 21,222/x
  3. Step 3: Cross multiply
    43,392.24x = 65,125.80 × 21,222
  4. Step 4: Simplify right side
    43,392.24x = 1,382,099,727.60
  5. Step 5: Solve for x
    x = 1,382,099,727.60/43,392.24
  6. Step 6: Final answer
    x = 31,851.31

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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.