Home / 21,623.48-29,840.58-12,671.24

Finding the Fourth Proportional to 21,623.48, 29,840.58 and 12,671.24

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Solution

The fourth proportional to 21,623.48, 29,840.58 and 12,671.24 is: 17,486.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.48 : 29,840.58 = 12,671.24 : x
  2. Step 2: Convert to fraction form
    21,623.48/29,840.58 = 12,671.24/x
  3. Step 3: Cross multiply
    21,623.48x = 29,840.58 × 12,671.24
  4. Step 4: Simplify right side
    21,623.48x = 378,117,150.92
  5. Step 5: Solve for x
    x = 378,117,150.92/21,623.48
  6. Step 6: Final answer
    x = 17,486.42

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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.