Home / 16,239.25-22,420.50-13,262.20

Finding the Fourth Proportional to 16,239.25, 22,420.50 and 13,262.20

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Solution

The fourth proportional to 16,239.25, 22,420.50 and 13,262.20 is: 18,310.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,239.25 : 22,420.50 = 13,262.20 : x
  2. Step 2: Convert to fraction form
    16,239.25/22,420.50 = 13,262.20/x
  3. Step 3: Cross multiply
    16,239.25x = 22,420.50 × 13,262.20
  4. Step 4: Simplify right side
    16,239.25x = 297,345,155.10
  5. Step 5: Solve for x
    x = 297,345,155.10/16,239.25
  6. Step 6: Final answer
    x = 18,310.28

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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.