Home / 28,063.72-38,727.92-15,488.48

Finding the Fourth Proportional to 28,063.72, 38,727.92 and 15,488.48

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Solution

The fourth proportional to 28,063.72, 38,727.92 and 15,488.48 is: 21,374.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063.72 : 38,727.92 = 15,488.48 : x
  2. Step 2: Convert to fraction form
    28,063.72/38,727.92 = 15,488.48/x
  3. Step 3: Cross multiply
    28,063.72x = 38,727.92 × 15,488.48
  4. Step 4: Simplify right side
    28,063.72x = 599,836,614.36
  5. Step 5: Solve for x
    x = 599,836,614.36/28,063.72
  6. Step 6: Final answer
    x = 21,374.09

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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.