Home / 30,362.85-45,530.89-13,722.21

Finding the Fourth Proportional to 30,362.85, 45,530.89 and 13,722.21

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Solution

The fourth proportional to 30,362.85, 45,530.89 and 13,722.21 is: 20,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,362.85 : 45,530.89 = 13,722.21 : x
  2. Step 2: Convert to fraction form
    30,362.85/45,530.89 = 13,722.21/x
  3. Step 3: Cross multiply
    30,362.85x = 45,530.89 × 13,722.21
  4. Step 4: Simplify right side
    30,362.85x = 624,784,434.07
  5. Step 5: Solve for x
    x = 624,784,434.07/30,362.85
  6. Step 6: Final answer
    x = 20,577.27

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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.