Home / 18,752.23-28,132.80-9,985.33

Finding the Fourth Proportional to 18,752.23, 28,132.80 and 9,985.33

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Solution

The fourth proportional to 18,752.23, 28,132.80 and 9,985.33 is: 14,980.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.23 : 28,132.80 = 9,985.33 : x
  2. Step 2: Convert to fraction form
    18,752.23/28,132.80 = 9,985.33/x
  3. Step 3: Cross multiply
    18,752.23x = 28,132.80 × 9,985.33
  4. Step 4: Simplify right side
    18,752.23x = 280,915,291.82
  5. Step 5: Solve for x
    x = 280,915,291.82/18,752.23
  6. Step 6: Final answer
    x = 14,980.37

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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.