Home / 25,619.90-38,403.52-9,820.64

Finding the Fourth Proportional to 25,619.90, 38,403.52 and 9,820.64

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Solution

The fourth proportional to 25,619.90, 38,403.52 and 9,820.64 is: 14,720.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,619.90 : 38,403.52 = 9,820.64 : x
  2. Step 2: Convert to fraction form
    25,619.90/38,403.52 = 9,820.64/x
  3. Step 3: Cross multiply
    25,619.90x = 38,403.52 × 9,820.64
  4. Step 4: Simplify right side
    25,619.90x = 377,147,216.11
  5. Step 5: Solve for x
    x = 377,147,216.11/25,619.90
  6. Step 6: Final answer
    x = 14,720.87

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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.