Home / 30,087.64-45,114.82-20,610.80

Finding the Fourth Proportional to 30,087.64, 45,114.82 and 20,610.80

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Solution

The fourth proportional to 30,087.64, 45,114.82 and 20,610.80 is: 30,904.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,087.64 : 45,114.82 = 20,610.80 : x
  2. Step 2: Convert to fraction form
    30,087.64/45,114.82 = 20,610.80/x
  3. Step 3: Cross multiply
    30,087.64x = 45,114.82 × 20,610.80
  4. Step 4: Simplify right side
    30,087.64x = 929,852,793.84
  5. Step 5: Solve for x
    x = 929,852,793.84/30,087.64
  6. Step 6: Final answer
    x = 30,904.81

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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.