Home / 42,735.98-58,983.80-28,174.61

Finding the Fourth Proportional to 42,735.98, 58,983.80 and 28,174.61

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Solution

The fourth proportional to 42,735.98, 58,983.80 and 28,174.61 is: 38,886.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,735.98 : 58,983.80 = 28,174.61 : x
  2. Step 2: Convert to fraction form
    42,735.98/58,983.80 = 28,174.61/x
  3. Step 3: Cross multiply
    42,735.98x = 58,983.80 × 28,174.61
  4. Step 4: Simplify right side
    42,735.98x = 1,661,845,125.53
  5. Step 5: Solve for x
    x = 1,661,845,125.53/42,735.98
  6. Step 6: Final answer
    x = 38,886.33

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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.