Home / 28,362.32-42,523.79-12,558.74

Finding the Fourth Proportional to 28,362.32, 42,523.79 and 12,558.74

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Solution

The fourth proportional to 28,362.32, 42,523.79 and 12,558.74 is: 18,829.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.32 : 42,523.79 = 12,558.74 : x
  2. Step 2: Convert to fraction form
    28,362.32/42,523.79 = 12,558.74/x
  3. Step 3: Cross multiply
    28,362.32x = 42,523.79 × 12,558.74
  4. Step 4: Simplify right side
    28,362.32x = 534,045,021.76
  5. Step 5: Solve for x
    x = 534,045,021.76/28,362.32
  6. Step 6: Final answer
    x = 18,829.39

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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.