Home / 28,507.73-42,761.70-16,812.75

Finding the Fourth Proportional to 28,507.73, 42,761.70 and 16,812.75

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Solution

The fourth proportional to 28,507.73, 42,761.70 and 16,812.75 is: 25,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,507.73 : 42,761.70 = 16,812.75 : x
  2. Step 2: Convert to fraction form
    28,507.73/42,761.70 = 16,812.75/x
  3. Step 3: Cross multiply
    28,507.73x = 42,761.70 × 16,812.75
  4. Step 4: Simplify right side
    28,507.73x = 718,941,771.68
  5. Step 5: Solve for x
    x = 718,941,771.68/28,507.73
  6. Step 6: Final answer
    x = 25,219.19

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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.