Home / 28,004.92-38,646.20-15,257.97

Finding the Fourth Proportional to 28,004.92, 38,646.20 and 15,257.97

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Solution

The fourth proportional to 28,004.92, 38,646.20 and 15,257.97 is: 21,055.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,004.92 : 38,646.20 = 15,257.97 : x
  2. Step 2: Convert to fraction form
    28,004.92/38,646.20 = 15,257.97/x
  3. Step 3: Cross multiply
    28,004.92x = 38,646.20 × 15,257.97
  4. Step 4: Simplify right side
    28,004.92x = 589,662,598.36
  5. Step 5: Solve for x
    x = 589,662,598.36/28,004.92
  6. Step 6: Final answer
    x = 21,055.68

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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.