Home / 19,611.84-29,379.54-15,671.28

Finding the Fourth Proportional to 19,611.84, 29,379.54 and 15,671.28

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Solution

The fourth proportional to 19,611.84, 29,379.54 and 15,671.28 is: 23,476.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.84 : 29,379.54 = 15,671.28 : x
  2. Step 2: Convert to fraction form
    19,611.84/29,379.54 = 15,671.28/x
  3. Step 3: Cross multiply
    19,611.84x = 29,379.54 × 15,671.28
  4. Step 4: Simplify right side
    19,611.84x = 460,414,997.61
  5. Step 5: Solve for x
    x = 460,414,997.61/19,611.84
  6. Step 6: Final answer
    x = 23,476.38

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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.