Home / 28,288.14-42,450.09-15,816.34

Finding the Fourth Proportional to 28,288.14, 42,450.09 and 15,816.34

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Solution

The fourth proportional to 28,288.14, 42,450.09 and 15,816.34 is: 23,734.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288.14 : 42,450.09 = 15,816.34 : x
  2. Step 2: Convert to fraction form
    28,288.14/42,450.09 = 15,816.34/x
  3. Step 3: Cross multiply
    28,288.14x = 42,450.09 × 15,816.34
  4. Step 4: Simplify right side
    28,288.14x = 671,405,056.47
  5. Step 5: Solve for x
    x = 671,405,056.47/28,288.14
  6. Step 6: Final answer
    x = 23,734.51

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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.