Home / 28,308.72-39,076.92-18,873.84

Finding the Fourth Proportional to 28,308.72, 39,076.92 and 18,873.84

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Solution

The fourth proportional to 28,308.72, 39,076.92 and 18,873.84 is: 26,053.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308.72 : 39,076.92 = 18,873.84 : x
  2. Step 2: Convert to fraction form
    28,308.72/39,076.92 = 18,873.84/x
  3. Step 3: Cross multiply
    28,308.72x = 39,076.92 × 18,873.84
  4. Step 4: Simplify right side
    28,308.72x = 737,531,535.77
  5. Step 5: Solve for x
    x = 737,531,535.77/28,308.72
  6. Step 6: Final answer
    x = 26,053.16

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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.