Home / 21,579.01-29,803.95-14,396.43

Finding the Fourth Proportional to 21,579.01, 29,803.95 and 14,396.43

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Solution

The fourth proportional to 21,579.01, 29,803.95 and 14,396.43 is: 19,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579.01 : 29,803.95 = 14,396.43 : x
  2. Step 2: Convert to fraction form
    21,579.01/29,803.95 = 14,396.43/x
  3. Step 3: Cross multiply
    21,579.01x = 29,803.95 × 14,396.43
  4. Step 4: Simplify right side
    21,579.01x = 429,070,591.66
  5. Step 5: Solve for x
    x = 429,070,591.66/21,579.01
  6. Step 6: Final answer
    x = 19,883.70

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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.