Home / 28,822.60-43,212.90-19,439.32

Finding the Fourth Proportional to 28,822.60, 43,212.90 and 19,439.32

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Solution

The fourth proportional to 28,822.60, 43,212.90 and 19,439.32 is: 29,144.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,822.60 : 43,212.90 = 19,439.32 : x
  2. Step 2: Convert to fraction form
    28,822.60/43,212.90 = 19,439.32/x
  3. Step 3: Cross multiply
    28,822.60x = 43,212.90 × 19,439.32
  4. Step 4: Simplify right side
    28,822.60x = 840,029,391.23
  5. Step 5: Solve for x
    x = 840,029,391.23/28,822.60
  6. Step 6: Final answer
    x = 29,144.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.