Home / 30,280.12-45,354.54-14,665

Finding the Fourth Proportional to 30,280.12, 45,354.54 and 14,665

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Solution

The fourth proportional to 30,280.12, 45,354.54 and 14,665 is: 21,965.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,280.12 : 45,354.54 = 14,665 : x
  2. Step 2: Convert to fraction form
    30,280.12/45,354.54 = 14,665/x
  3. Step 3: Cross multiply
    30,280.12x = 45,354.54 × 14,665
  4. Step 4: Simplify right side
    30,280.12x = 665,124,329.10
  5. Step 5: Solve for x
    x = 665,124,329.10/30,280.12
  6. Step 6: Final answer
    x = 21,965.71

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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.