Home / 40,878.87-56,360.79-27,428.82

Finding the Fourth Proportional to 40,878.87, 56,360.79 and 27,428.82

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Solution

The fourth proportional to 40,878.87, 56,360.79 and 27,428.82 is: 37,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,878.87 : 56,360.79 = 27,428.82 : x
  2. Step 2: Convert to fraction form
    40,878.87/56,360.79 = 27,428.82/x
  3. Step 3: Cross multiply
    40,878.87x = 56,360.79 × 27,428.82
  4. Step 4: Simplify right side
    40,878.87x = 1,545,909,963.97
  5. Step 5: Solve for x
    x = 1,545,909,963.97/40,878.87
  6. Step 6: Final answer
    x = 37,816.85

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1.5x scale

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.