Home / 21,335.55-29,394.99-14,869.09

Finding the Fourth Proportional to 21,335.55, 29,394.99 and 14,869.09

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Solution

The fourth proportional to 21,335.55, 29,394.99 and 14,869.09 is: 20,485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335.55 : 29,394.99 = 14,869.09 : x
  2. Step 2: Convert to fraction form
    21,335.55/29,394.99 = 14,869.09/x
  3. Step 3: Cross multiply
    21,335.55x = 29,394.99 × 14,869.09
  4. Step 4: Simplify right side
    21,335.55x = 437,076,850.37
  5. Step 5: Solve for x
    x = 437,076,850.37/21,335.55
  6. Step 6: Final answer
    x = 20,485.85

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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.