Home / 28,351.32-39,125-15,604.16

Finding the Fourth Proportional to 28,351.32, 39,125 and 15,604.16

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Solution

The fourth proportional to 28,351.32, 39,125 and 15,604.16 is: 21,533.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.32 : 39,125 = 15,604.16 : x
  2. Step 2: Convert to fraction form
    28,351.32/39,125 = 15,604.16/x
  3. Step 3: Cross multiply
    28,351.32x = 39,125 × 15,604.16
  4. Step 4: Simplify right side
    28,351.32x = 610,512,760
  5. Step 5: Solve for x
    x = 610,512,760/28,351.32
  6. Step 6: Final answer
    x = 21,533.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.