Home / 40,917.80-56,424.58-28,977.96

Finding the Fourth Proportional to 40,917.80, 56,424.58 and 28,977.96

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Solution

The fourth proportional to 40,917.80, 56,424.58 and 28,977.96 is: 39,959.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,917.80 : 56,424.58 = 28,977.96 : x
  2. Step 2: Convert to fraction form
    40,917.80/56,424.58 = 28,977.96/x
  3. Step 3: Cross multiply
    40,917.80x = 56,424.58 × 28,977.96
  4. Step 4: Simplify right side
    40,917.80x = 1,635,069,222.26
  5. Step 5: Solve for x
    x = 1,635,069,222.26/40,917.80
  6. Step 6: Final answer
    x = 39,959.85

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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.