Home / 21,906.10-32,810.55-16,948.90

Finding the Fourth Proportional to 21,906.10, 32,810.55 and 16,948.90

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Solution

The fourth proportional to 21,906.10, 32,810.55 and 16,948.90 is: 25,385.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,906.10 : 32,810.55 = 16,948.90 : x
  2. Step 2: Convert to fraction form
    21,906.10/32,810.55 = 16,948.90/x
  3. Step 3: Cross multiply
    21,906.10x = 32,810.55 × 16,948.90
  4. Step 4: Simplify right side
    21,906.10x = 556,102,730.90
  5. Step 5: Solve for x
    x = 556,102,730.90/21,906.10
  6. Step 6: Final answer
    x = 25,385.75

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1.5x scale

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.