Home / 14,380.70-21,572.85-3,992.45

Finding the Fourth Proportional to 14,380.70, 21,572.85 and 3,992.45

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Solution

The fourth proportional to 14,380.70, 21,572.85 and 3,992.45 is: 5,989.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,380.70 : 21,572.85 = 3,992.45 : x
  2. Step 2: Convert to fraction form
    14,380.70/21,572.85 = 3,992.45/x
  3. Step 3: Cross multiply
    14,380.70x = 21,572.85 × 3,992.45
  4. Step 4: Simplify right side
    14,380.70x = 86,128,417.12
  5. Step 5: Solve for x
    x = 86,128,417.12/14,380.70
  6. Step 6: Final answer
    x = 5,989.17

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1.5x scale

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.