Home / 25,549.92-38,321.64-18,985.68

Finding the Fourth Proportional to 25,549.92, 38,321.64 and 18,985.68

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Solution

The fourth proportional to 25,549.92, 38,321.64 and 18,985.68 is: 28,476.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,549.92 : 38,321.64 = 18,985.68 : x
  2. Step 2: Convert to fraction form
    25,549.92/38,321.64 = 18,985.68/x
  3. Step 3: Cross multiply
    25,549.92x = 38,321.64 × 18,985.68
  4. Step 4: Simplify right side
    25,549.92x = 727,562,394.12
  5. Step 5: Solve for x
    x = 727,562,394.12/25,549.92
  6. Step 6: Final answer
    x = 28,476.11

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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.