Home / 52,021.81-71,789.59-28,147.96

Finding the Fourth Proportional to 52,021.81, 71,789.59 and 28,147.96

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Solution

The fourth proportional to 52,021.81, 71,789.59 and 28,147.96 is: 38,843.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,021.81 : 71,789.59 = 28,147.96 : x
  2. Step 2: Convert to fraction form
    52,021.81/71,789.59 = 28,147.96/x
  3. Step 3: Cross multiply
    52,021.81x = 71,789.59 × 28,147.96
  4. Step 4: Simplify right side
    52,021.81x = 2,020,730,507.74
  5. Step 5: Solve for x
    x = 2,020,730,507.74/52,021.81
  6. Step 6: Final answer
    x = 38,843.91

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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.