Home / 18,898.88-28,352.40-5,752.28

Finding the Fourth Proportional to 18,898.88, 28,352.40 and 5,752.28

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Solution

The fourth proportional to 18,898.88, 28,352.40 and 5,752.28 is: 8,629.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.88 : 28,352.40 = 5,752.28 : x
  2. Step 2: Convert to fraction form
    18,898.88/28,352.40 = 5,752.28/x
  3. Step 3: Cross multiply
    18,898.88x = 28,352.40 × 5,752.28
  4. Step 4: Simplify right side
    18,898.88x = 163,090,943.47
  5. Step 5: Solve for x
    x = 163,090,943.47/18,898.88
  6. Step 6: Final answer
    x = 8,629.66

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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.