Home / 28,245.90-42,343.67-10,728.03

Finding the Fourth Proportional to 28,245.90, 42,343.67 and 10,728.03

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Solution

The fourth proportional to 28,245.90, 42,343.67 and 10,728.03 is: 16,082.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.90 : 42,343.67 = 10,728.03 : x
  2. Step 2: Convert to fraction form
    28,245.90/42,343.67 = 10,728.03/x
  3. Step 3: Cross multiply
    28,245.90x = 42,343.67 × 10,728.03
  4. Step 4: Simplify right side
    28,245.90x = 454,263,896.71
  5. Step 5: Solve for x
    x = 454,263,896.71/28,245.90
  6. Step 6: Final answer
    x = 16,082.47

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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.