Home / 21,934.60-30,269.82-12,503.32

Finding the Fourth Proportional to 21,934.60, 30,269.82 and 12,503.32

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Solution

The fourth proportional to 21,934.60, 30,269.82 and 12,503.32 is: 17,254.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.60 : 30,269.82 = 12,503.32 : x
  2. Step 2: Convert to fraction form
    21,934.60/30,269.82 = 12,503.32/x
  3. Step 3: Cross multiply
    21,934.60x = 30,269.82 × 12,503.32
  4. Step 4: Simplify right side
    21,934.60x = 378,473,245.80
  5. Step 5: Solve for x
    x = 378,473,245.80/21,934.60
  6. Step 6: Final answer
    x = 17,254.62

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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.