Home / 28,372.91-42,557.77-12,573.39

Finding the Fourth Proportional to 28,372.91, 42,557.77 and 12,573.39

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Solution

The fourth proportional to 28,372.91, 42,557.77 and 12,573.39 is: 18,859.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,372.91 : 42,557.77 = 12,573.39 : x
  2. Step 2: Convert to fraction form
    28,372.91/42,557.77 = 12,573.39/x
  3. Step 3: Cross multiply
    28,372.91x = 42,557.77 × 12,573.39
  4. Step 4: Simplify right side
    28,372.91x = 535,095,376.87
  5. Step 5: Solve for x
    x = 535,095,376.87/28,372.91
  6. Step 6: Final answer
    x = 18,859.38

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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.