Home / 21,409.48-29,573.32-16,435.17

Finding the Fourth Proportional to 21,409.48, 29,573.32 and 16,435.17

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Solution

The fourth proportional to 21,409.48, 29,573.32 and 16,435.17 is: 22,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409.48 : 29,573.32 = 16,435.17 : x
  2. Step 2: Convert to fraction form
    21,409.48/29,573.32 = 16,435.17/x
  3. Step 3: Cross multiply
    21,409.48x = 29,573.32 × 16,435.17
  4. Step 4: Simplify right side
    21,409.48x = 486,042,311.62
  5. Step 5: Solve for x
    x = 486,042,311.62/21,409.48
  6. Step 6: Final answer
    x = 22,702.21

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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.