Home / 20,438.16-28,201.50-11,483.94

Finding the Fourth Proportional to 20,438.16, 28,201.50 and 11,483.94

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Solution

The fourth proportional to 20,438.16, 28,201.50 and 11,483.94 is: 15,846.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,438.16 : 28,201.50 = 11,483.94 : x
  2. Step 2: Convert to fraction form
    20,438.16/28,201.50 = 11,483.94/x
  3. Step 3: Cross multiply
    20,438.16x = 28,201.50 × 11,483.94
  4. Step 4: Simplify right side
    20,438.16x = 323,864,333.91
  5. Step 5: Solve for x
    x = 323,864,333.91/20,438.16
  6. Step 6: Final answer
    x = 15,846.06

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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.