Home / 28,418.66-39,218.01-17,088.50

Finding the Fourth Proportional to 28,418.66, 39,218.01 and 17,088.50

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Solution

The fourth proportional to 28,418.66, 39,218.01 and 17,088.50 is: 23,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,418.66 : 39,218.01 = 17,088.50 : x
  2. Step 2: Convert to fraction form
    28,418.66/39,218.01 = 17,088.50/x
  3. Step 3: Cross multiply
    28,418.66x = 39,218.01 × 17,088.50
  4. Step 4: Simplify right side
    28,418.66x = 670,176,963.89
  5. Step 5: Solve for x
    x = 670,176,963.89/28,418.66
  6. Step 6: Final answer
    x = 23,582.29

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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.