Home / 21,944.19-32,916.29-12,078.39

Finding the Fourth Proportional to 21,944.19, 32,916.29 and 12,078.39

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Solution

The fourth proportional to 21,944.19, 32,916.29 and 12,078.39 is: 18,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,944.19 : 32,916.29 = 12,078.39 : x
  2. Step 2: Convert to fraction form
    21,944.19/32,916.29 = 12,078.39/x
  3. Step 3: Cross multiply
    21,944.19x = 32,916.29 × 12,078.39
  4. Step 4: Simplify right side
    21,944.19x = 397,575,727.58
  5. Step 5: Solve for x
    x = 397,575,727.58/21,944.19
  6. Step 6: Final answer
    x = 18,117.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.