Home / 21,348.98-29,459.52-14,640.36

Finding the Fourth Proportional to 21,348.98, 29,459.52 and 14,640.36

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Solution

The fourth proportional to 21,348.98, 29,459.52 and 14,640.36 is: 20,202.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,348.98 : 29,459.52 = 14,640.36 : x
  2. Step 2: Convert to fraction form
    21,348.98/29,459.52 = 14,640.36/x
  3. Step 3: Cross multiply
    21,348.98x = 29,459.52 × 14,640.36
  4. Step 4: Simplify right side
    21,348.98x = 431,297,978.23
  5. Step 5: Solve for x
    x = 431,297,978.23/21,348.98
  6. Step 6: Final answer
    x = 20,202.28

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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.