Home / 21,304.53-29,400.60-11,873.09

Finding the Fourth Proportional to 21,304.53, 29,400.60 and 11,873.09

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Solution

The fourth proportional to 21,304.53, 29,400.60 and 11,873.09 is: 16,385.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.53 : 29,400.60 = 11,873.09 : x
  2. Step 2: Convert to fraction form
    21,304.53/29,400.60 = 11,873.09/x
  3. Step 3: Cross multiply
    21,304.53x = 29,400.60 × 11,873.09
  4. Step 4: Simplify right side
    21,304.53x = 349,075,822.85
  5. Step 5: Solve for x
    x = 349,075,822.85/21,304.53
  6. Step 6: Final answer
    x = 16,385.05

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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.