Home / 20,500.90-28,299.18-16,026.10

Finding the Fourth Proportional to 20,500.90, 28,299.18 and 16,026.10

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Solution

The fourth proportional to 20,500.90, 28,299.18 and 16,026.10 is: 22,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500.90 : 28,299.18 = 16,026.10 : x
  2. Step 2: Convert to fraction form
    20,500.90/28,299.18 = 16,026.10/x
  3. Step 3: Cross multiply
    20,500.90x = 28,299.18 × 16,026.10
  4. Step 4: Simplify right side
    20,500.90x = 453,525,429.88
  5. Step 5: Solve for x
    x = 453,525,429.88/20,500.90
  6. Step 6: Final answer
    x = 22,122.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.