Home / 45,028.36-67,560.90-18,728.20

Finding the Fourth Proportional to 45,028.36, 67,560.90 and 18,728.20

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Solution

The fourth proportional to 45,028.36, 67,560.90 and 18,728.20 is: 28,099.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,028.36 : 67,560.90 = 18,728.20 : x
  2. Step 2: Convert to fraction form
    45,028.36/67,560.90 = 18,728.20/x
  3. Step 3: Cross multiply
    45,028.36x = 67,560.90 × 18,728.20
  4. Step 4: Simplify right side
    45,028.36x = 1,265,294,047.38
  5. Step 5: Solve for x
    x = 1,265,294,047.38/45,028.36
  6. Step 6: Final answer
    x = 28,099.94

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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.