Home / 27,986.07-42,040.71-16,899.36

Finding the Fourth Proportional to 27,986.07, 42,040.71 and 16,899.36

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Solution

The fourth proportional to 27,986.07, 42,040.71 and 16,899.36 is: 25,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,986.07 : 42,040.71 = 16,899.36 : x
  2. Step 2: Convert to fraction form
    27,986.07/42,040.71 = 16,899.36/x
  3. Step 3: Cross multiply
    27,986.07x = 42,040.71 × 16,899.36
  4. Step 4: Simplify right side
    27,986.07x = 710,461,092.95
  5. Step 5: Solve for x
    x = 710,461,092.95/27,986.07
  6. Step 6: Final answer
    x = 25,386.24

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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.