Home / 28,023.16-38,672.22-15,448.36

Finding the Fourth Proportional to 28,023.16, 38,672.22 and 15,448.36

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Solution

The fourth proportional to 28,023.16, 38,672.22 and 15,448.36 is: 21,318.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.16 : 38,672.22 = 15,448.36 : x
  2. Step 2: Convert to fraction form
    28,023.16/38,672.22 = 15,448.36/x
  3. Step 3: Cross multiply
    28,023.16x = 38,672.22 × 15,448.36
  4. Step 4: Simplify right side
    28,023.16x = 597,422,376.56
  5. Step 5: Solve for x
    x = 597,422,376.56/28,023.16
  6. Step 6: Final answer
    x = 21,318.88

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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.