Home / 21,449.07-32,181.71-8,977.50

Finding the Fourth Proportional to 21,449.07, 32,181.71 and 8,977.50

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Solution

The fourth proportional to 21,449.07, 32,181.71 and 8,977.50 is: 13,469.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449.07 : 32,181.71 = 8,977.50 : x
  2. Step 2: Convert to fraction form
    21,449.07/32,181.71 = 8,977.50/x
  3. Step 3: Cross multiply
    21,449.07x = 32,181.71 × 8,977.50
  4. Step 4: Simplify right side
    21,449.07x = 288,911,256.64
  5. Step 5: Solve for x
    x = 288,911,256.64/21,449.07
  6. Step 6: Final answer
    x = 13,469.64

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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.