Home / 21,377.44-29,501.52-11,946.40

Finding the Fourth Proportional to 21,377.44, 29,501.52 and 11,946.40

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Solution

The fourth proportional to 21,377.44, 29,501.52 and 11,946.40 is: 16,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.44 : 29,501.52 = 11,946.40 : x
  2. Step 2: Convert to fraction form
    21,377.44/29,501.52 = 11,946.40/x
  3. Step 3: Cross multiply
    21,377.44x = 29,501.52 × 11,946.40
  4. Step 4: Simplify right side
    21,377.44x = 352,436,958.53
  5. Step 5: Solve for x
    x = 352,436,958.53/21,377.44
  6. Step 6: Final answer
    x = 16,486.40

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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.