Home / 28,023.52-38,671.72-15,448.32

Finding the Fourth Proportional to 28,023.52, 38,671.72 and 15,448.32

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Solution

The fourth proportional to 28,023.52, 38,671.72 and 15,448.32 is: 21,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.52 : 38,671.72 = 15,448.32 : x
  2. Step 2: Convert to fraction form
    28,023.52/38,671.72 = 15,448.32/x
  3. Step 3: Cross multiply
    28,023.52x = 38,671.72 × 15,448.32
  4. Step 4: Simplify right side
    28,023.52x = 597,413,105.51
  5. Step 5: Solve for x
    x = 597,413,105.51/28,023.52
  6. Step 6: Final answer
    x = 21,318.27

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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.