Home / 29,136.80-40,212.35-16,390.52

Finding the Fourth Proportional to 29,136.80, 40,212.35 and 16,390.52

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Solution

The fourth proportional to 29,136.80, 40,212.35 and 16,390.52 is: 22,620.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,136.80 : 40,212.35 = 16,390.52 : x
  2. Step 2: Convert to fraction form
    29,136.80/40,212.35 = 16,390.52/x
  3. Step 3: Cross multiply
    29,136.80x = 40,212.35 × 16,390.52
  4. Step 4: Simplify right side
    29,136.80x = 659,101,386.48
  5. Step 5: Solve for x
    x = 659,101,386.48/29,136.80
  6. Step 6: Final answer
    x = 22,620.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.