Home / 20,600.10-28,427.76-11,647.36

Finding the Fourth Proportional to 20,600.10, 28,427.76 and 11,647.36

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Solution

The fourth proportional to 20,600.10, 28,427.76 and 11,647.36 is: 16,073.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.10 : 28,427.76 = 11,647.36 : x
  2. Step 2: Convert to fraction form
    20,600.10/28,427.76 = 11,647.36/x
  3. Step 3: Cross multiply
    20,600.10x = 28,427.76 × 11,647.36
  4. Step 4: Simplify right side
    20,600.10x = 331,108,354.71
  5. Step 5: Solve for x
    x = 331,108,354.71/20,600.10
  6. Step 6: Final answer
    x = 16,073.14

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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.