Home / 28,526.30-42,796.74-10,991.42

Finding the Fourth Proportional to 28,526.30, 42,796.74 and 10,991.42

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Solution

The fourth proportional to 28,526.30, 42,796.74 and 10,991.42 is: 16,489.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,526.30 : 42,796.74 = 10,991.42 : x
  2. Step 2: Convert to fraction form
    28,526.30/42,796.74 = 10,991.42/x
  3. Step 3: Cross multiply
    28,526.30x = 42,796.74 × 10,991.42
  4. Step 4: Simplify right side
    28,526.30x = 470,396,943.97
  5. Step 5: Solve for x
    x = 470,396,943.97/28,526.30
  6. Step 6: Final answer
    x = 16,489.94

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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.