Home / 21,428.82-29,552.04-14,702.58

Finding the Fourth Proportional to 21,428.82, 29,552.04 and 14,702.58

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Solution

The fourth proportional to 21,428.82, 29,552.04 and 14,702.58 is: 20,276.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,428.82 : 29,552.04 = 14,702.58 : x
  2. Step 2: Convert to fraction form
    21,428.82/29,552.04 = 14,702.58/x
  3. Step 3: Cross multiply
    21,428.82x = 29,552.04 × 14,702.58
  4. Step 4: Simplify right side
    21,428.82x = 434,491,232.26
  5. Step 5: Solve for x
    x = 434,491,232.26/21,428.82
  6. Step 6: Final answer
    x = 20,276.02

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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.