Home / 28,040.10-38,695.08-15,293.56

Finding the Fourth Proportional to 28,040.10, 38,695.08 and 15,293.56

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Solution

The fourth proportional to 28,040.10, 38,695.08 and 15,293.56 is: 21,104.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.10 : 38,695.08 = 15,293.56 : x
  2. Step 2: Convert to fraction form
    28,040.10/38,695.08 = 15,293.56/x
  3. Step 3: Cross multiply
    28,040.10x = 38,695.08 × 15,293.56
  4. Step 4: Simplify right side
    28,040.10x = 591,785,527.68
  5. Step 5: Solve for x
    x = 591,785,527.68/28,040.10
  6. Step 6: Final answer
    x = 21,104.97

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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.