Home / 30,125.20-45,187.80-19,627.60

Finding the Fourth Proportional to 30,125.20, 45,187.80 and 19,627.60

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Solution

The fourth proportional to 30,125.20, 45,187.80 and 19,627.60 is: 29,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,125.20 : 45,187.80 = 19,627.60 : x
  2. Step 2: Convert to fraction form
    30,125.20/45,187.80 = 19,627.60/x
  3. Step 3: Cross multiply
    30,125.20x = 45,187.80 × 19,627.60
  4. Step 4: Simplify right side
    30,125.20x = 886,928,063.28
  5. Step 5: Solve for x
    x = 886,928,063.28/30,125.20
  6. Step 6: Final answer
    x = 29,441.40

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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.