Home / 28,022.52-38,671.53-15,447.27

Finding the Fourth Proportional to 28,022.52, 38,671.53 and 15,447.27

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Solution

The fourth proportional to 28,022.52, 38,671.53 and 15,447.27 is: 21,317.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,022.52 : 38,671.53 = 15,447.27 : x
  2. Step 2: Convert to fraction form
    28,022.52/38,671.53 = 15,447.27/x
  3. Step 3: Cross multiply
    28,022.52x = 38,671.53 × 15,447.27
  4. Step 4: Simplify right side
    28,022.52x = 597,369,565.22
  5. Step 5: Solve for x
    x = 597,369,565.22/28,022.52
  6. Step 6: Final answer
    x = 21,317.48

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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.