Home / 21,377.84-29,501.21-11,946.41

Finding the Fourth Proportional to 21,377.84, 29,501.21 and 11,946.41

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Solution

The fourth proportional to 21,377.84, 29,501.21 and 11,946.41 is: 16,485.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.84 : 29,501.21 = 11,946.41 : x
  2. Step 2: Convert to fraction form
    21,377.84/29,501.21 = 11,946.41/x
  3. Step 3: Cross multiply
    21,377.84x = 29,501.21 × 11,946.41
  4. Step 4: Simplify right side
    21,377.84x = 352,433,342.92
  5. Step 5: Solve for x
    x = 352,433,342.92/21,377.84
  6. Step 6: Final answer
    x = 16,485.92

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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.