Home / 28,463.28-42,694.84-15,821.07

Finding the Fourth Proportional to 28,463.28, 42,694.84 and 15,821.07

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Solution

The fourth proportional to 28,463.28, 42,694.84 and 15,821.07 is: 23,731.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,463.28 : 42,694.84 = 15,821.07 : x
  2. Step 2: Convert to fraction form
    28,463.28/42,694.84 = 15,821.07/x
  3. Step 3: Cross multiply
    28,463.28x = 42,694.84 × 15,821.07
  4. Step 4: Simplify right side
    28,463.28x = 675,478,052.28
  5. Step 5: Solve for x
    x = 675,478,052.28/28,463.28
  6. Step 6: Final answer
    x = 23,731.56

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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.