Home / 14,381.60-21,572.72-3,993.28

Finding the Fourth Proportional to 14,381.60, 21,572.72 and 3,993.28

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Solution

The fourth proportional to 14,381.60, 21,572.72 and 3,993.28 is: 5,990.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,381.60 : 21,572.72 = 3,993.28 : x
  2. Step 2: Convert to fraction form
    14,381.60/21,572.72 = 3,993.28/x
  3. Step 3: Cross multiply
    14,381.60x = 21,572.72 × 3,993.28
  4. Step 4: Simplify right side
    14,381.60x = 86,145,911.32
  5. Step 5: Solve for x
    x = 86,145,911.32/14,381.60
  6. Step 6: Final answer
    x = 5,990.01

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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.