Home / 40,036.64-55,228.80-27,918

Finding the Fourth Proportional to 40,036.64, 55,228.80 and 27,918

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Solution

The fourth proportional to 40,036.64, 55,228.80 and 27,918 is: 38,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,036.64 : 55,228.80 = 27,918 : x
  2. Step 2: Convert to fraction form
    40,036.64/55,228.80 = 27,918/x
  3. Step 3: Cross multiply
    40,036.64x = 55,228.80 × 27,918
  4. Step 4: Simplify right side
    40,036.64x = 1,541,877,638.40
  5. Step 5: Solve for x
    x = 1,541,877,638.40/40,036.64
  6. Step 6: Final answer
    x = 38,511.66

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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.