Home / 21,409.54-29,573.40-16,435.23

Finding the Fourth Proportional to 21,409.54, 29,573.40 and 16,435.23

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Solution

The fourth proportional to 21,409.54, 29,573.40 and 16,435.23 is: 22,702.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409.54 : 29,573.40 = 16,435.23 : x
  2. Step 2: Convert to fraction form
    21,409.54/29,573.40 = 16,435.23/x
  3. Step 3: Cross multiply
    21,409.54x = 29,573.40 × 16,435.23
  4. Step 4: Simplify right side
    21,409.54x = 486,045,489.17
  5. Step 5: Solve for x
    x = 486,045,489.17/21,409.54
  6. Step 6: Final answer
    x = 22,702.29

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Double scale
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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.