Home / 21,558.96-29,746.44-12,124.08

Finding the Fourth Proportional to 21,558.96, 29,746.44 and 12,124.08

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Solution

The fourth proportional to 21,558.96, 29,746.44 and 12,124.08 is: 16,728.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,558.96 : 29,746.44 = 12,124.08 : x
  2. Step 2: Convert to fraction form
    21,558.96/29,746.44 = 12,124.08/x
  3. Step 3: Cross multiply
    21,558.96x = 29,746.44 × 12,124.08
  4. Step 4: Simplify right side
    21,558.96x = 360,648,218.28
  5. Step 5: Solve for x
    x = 360,648,218.28/21,558.96
  6. Step 6: Final answer
    x = 16,728.46

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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.