Home / 28,270.96-39,028.52-19,924.72

Finding the Fourth Proportional to 28,270.96, 39,028.52 and 19,924.72

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Solution

The fourth proportional to 28,270.96, 39,028.52 and 19,924.72 is: 27,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,270.96 : 39,028.52 = 19,924.72 : x
  2. Step 2: Convert to fraction form
    28,270.96/39,028.52 = 19,924.72/x
  3. Step 3: Cross multiply
    28,270.96x = 39,028.52 × 19,924.72
  4. Step 4: Simplify right side
    28,270.96x = 777,632,333.01
  5. Step 5: Solve for x
    x = 777,632,333.01/28,270.96
  6. Step 6: Final answer
    x = 27,506.40

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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.