Home / 30,913.04-42,659.70-16,765.94

Finding the Fourth Proportional to 30,913.04, 42,659.70 and 16,765.94

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Solution

The fourth proportional to 30,913.04, 42,659.70 and 16,765.94 is: 23,136.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,913.04 : 42,659.70 = 16,765.94 : x
  2. Step 2: Convert to fraction form
    30,913.04/42,659.70 = 16,765.94/x
  3. Step 3: Cross multiply
    30,913.04x = 42,659.70 × 16,765.94
  4. Step 4: Simplify right side
    30,913.04x = 715,229,970.62
  5. Step 5: Solve for x
    x = 715,229,970.62/30,913.04
  6. Step 6: Final answer
    x = 23,136.84

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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.