Home / 30,219.11-45,313.09-13,564.86

Finding the Fourth Proportional to 30,219.11, 45,313.09 and 13,564.86

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Solution

The fourth proportional to 30,219.11, 45,313.09 and 13,564.86 is: 20,340.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.11 : 45,313.09 = 13,564.86 : x
  2. Step 2: Convert to fraction form
    30,219.11/45,313.09 = 13,564.86/x
  3. Step 3: Cross multiply
    30,219.11x = 45,313.09 × 13,564.86
  4. Step 4: Simplify right side
    30,219.11x = 614,665,722.02
  5. Step 5: Solve for x
    x = 614,665,722.02/30,219.11
  6. Step 6: Final answer
    x = 20,340.30

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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.