Home / 21,343.59-29,453.99-11,783.50

Finding the Fourth Proportional to 21,343.59, 29,453.99 and 11,783.50

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Solution

The fourth proportional to 21,343.59, 29,453.99 and 11,783.50 is: 16,261.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.59 : 29,453.99 = 11,783.50 : x
  2. Step 2: Convert to fraction form
    21,343.59/29,453.99 = 11,783.50/x
  3. Step 3: Cross multiply
    21,343.59x = 29,453.99 × 11,783.50
  4. Step 4: Simplify right side
    21,343.59x = 347,070,958.61
  5. Step 5: Solve for x
    x = 347,070,958.61/21,343.59
  6. Step 6: Final answer
    x = 16,261.13

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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.