Home / 21,377.75-29,501.93-11,946.34

Finding the Fourth Proportional to 21,377.75, 29,501.93 and 11,946.34

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Solution

The fourth proportional to 21,377.75, 29,501.93 and 11,946.34 is: 16,486.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.75 : 29,501.93 = 11,946.34 : x
  2. Step 2: Convert to fraction form
    21,377.75/29,501.93 = 11,946.34/x
  3. Step 3: Cross multiply
    21,377.75x = 29,501.93 × 11,946.34
  4. Step 4: Simplify right side
    21,377.75x = 352,439,879.19
  5. Step 5: Solve for x
    x = 352,439,879.19/21,377.75
  6. Step 6: Final answer
    x = 16,486.29

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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.