Home / 28,014.92-38,660.08-15,268.20

Finding the Fourth Proportional to 28,014.92, 38,660.08 and 15,268.20

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Solution

The fourth proportional to 28,014.92, 38,660.08 and 15,268.20 is: 21,069.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,014.92 : 38,660.08 = 15,268.20 : x
  2. Step 2: Convert to fraction form
    28,014.92/38,660.08 = 15,268.20/x
  3. Step 3: Cross multiply
    28,014.92x = 38,660.08 × 15,268.20
  4. Step 4: Simplify right side
    28,014.92x = 590,269,833.46
  5. Step 5: Solve for x
    x = 590,269,833.46/28,014.92
  6. Step 6: Final answer
    x = 21,069.84

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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.