Home / 20,714.85-28,603.37-16,887.10

Finding the Fourth Proportional to 20,714.85, 28,603.37 and 16,887.10

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Solution

The fourth proportional to 20,714.85, 28,603.37 and 16,887.10 is: 23,317.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.85 : 28,603.37 = 16,887.10 : x
  2. Step 2: Convert to fraction form
    20,714.85/28,603.37 = 16,887.10/x
  3. Step 3: Cross multiply
    20,714.85x = 28,603.37 × 16,887.10
  4. Step 4: Simplify right side
    20,714.85x = 483,027,969.53
  5. Step 5: Solve for x
    x = 483,027,969.53/20,714.85
  6. Step 6: Final answer
    x = 23,317.96

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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.