Home / 21,455.22-29,607.75-12,023.58

Finding the Fourth Proportional to 21,455.22, 29,607.75 and 12,023.58

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Solution

The fourth proportional to 21,455.22, 29,607.75 and 12,023.58 is: 16,592.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.22 : 29,607.75 = 12,023.58 : x
  2. Step 2: Convert to fraction form
    21,455.22/29,607.75 = 12,023.58/x
  3. Step 3: Cross multiply
    21,455.22x = 29,607.75 × 12,023.58
  4. Step 4: Simplify right side
    21,455.22x = 355,991,150.75
  5. Step 5: Solve for x
    x = 355,991,150.75/21,455.22
  6. Step 6: Final answer
    x = 16,592.29

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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.