Home / 28,346.56-39,119.04-15,772.16

Finding the Fourth Proportional to 28,346.56, 39,119.04 and 15,772.16

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Solution

The fourth proportional to 28,346.56, 39,119.04 and 15,772.16 is: 21,766.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,346.56 : 39,119.04 = 15,772.16 : x
  2. Step 2: Convert to fraction form
    28,346.56/39,119.04 = 15,772.16/x
  3. Step 3: Cross multiply
    28,346.56x = 39,119.04 × 15,772.16
  4. Step 4: Simplify right side
    28,346.56x = 616,991,757.93
  5. Step 5: Solve for x
    x = 616,991,757.93/28,346.56
  6. Step 6: Final answer
    x = 21,766.02

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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.