Home / 21,226.48-29,289.28-12,272.24

Finding the Fourth Proportional to 21,226.48, 29,289.28 and 12,272.24

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Solution

The fourth proportional to 21,226.48, 29,289.28 and 12,272.24 is: 16,933.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,226.48 : 29,289.28 = 12,272.24 : x
  2. Step 2: Convert to fraction form
    21,226.48/29,289.28 = 12,272.24/x
  3. Step 3: Cross multiply
    21,226.48x = 29,289.28 × 12,272.24
  4. Step 4: Simplify right side
    21,226.48x = 359,445,073.59
  5. Step 5: Solve for x
    x = 359,445,073.59/21,226.48
  6. Step 6: Final answer
    x = 16,933.81

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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.