Home / 28,458.50-42,687.72-15,816.30

Finding the Fourth Proportional to 28,458.50, 42,687.72 and 15,816.30

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Solution

The fourth proportional to 28,458.50, 42,687.72 and 15,816.30 is: 23,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458.50 : 42,687.72 = 15,816.30 : x
  2. Step 2: Convert to fraction form
    28,458.50/42,687.72 = 15,816.30/x
  3. Step 3: Cross multiply
    28,458.50x = 42,687.72 × 15,816.30
  4. Step 4: Simplify right side
    28,458.50x = 675,161,785.84
  5. Step 5: Solve for x
    x = 675,161,785.84/28,458.50
  6. Step 6: Final answer
    x = 23,724.43

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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.