Home / 21,621.52-29,833.48-13,232.08

Finding the Fourth Proportional to 21,621.52, 29,833.48 and 13,232.08

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Solution

The fourth proportional to 21,621.52, 29,833.48 and 13,232.08 is: 18,257.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621.52 : 29,833.48 = 13,232.08 : x
  2. Step 2: Convert to fraction form
    21,621.52/29,833.48 = 13,232.08/x
  3. Step 3: Cross multiply
    21,621.52x = 29,833.48 × 13,232.08
  4. Step 4: Simplify right side
    21,621.52x = 394,758,994.04
  5. Step 5: Solve for x
    x = 394,758,994.04/21,621.52
  6. Step 6: Final answer
    x = 18,257.69

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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.