Home / 44,419.20-66,628.80-18,115.20

Finding the Fourth Proportional to 44,419.20, 66,628.80 and 18,115.20

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Solution

The fourth proportional to 44,419.20, 66,628.80 and 18,115.20 is: 27,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,419.20 : 66,628.80 = 18,115.20 : x
  2. Step 2: Convert to fraction form
    44,419.20/66,628.80 = 18,115.20/x
  3. Step 3: Cross multiply
    44,419.20x = 66,628.80 × 18,115.20
  4. Step 4: Simplify right side
    44,419.20x = 1,206,994,037.76
  5. Step 5: Solve for x
    x = 1,206,994,037.76/44,419.20
  6. Step 6: Final answer
    x = 27,172.80

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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.