Home / 21,655.09-29,883.41-12,224.53

Finding the Fourth Proportional to 21,655.09, 29,883.41 and 12,224.53

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Solution

The fourth proportional to 21,655.09, 29,883.41 and 12,224.53 is: 16,869.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.09 : 29,883.41 = 12,224.53 : x
  2. Step 2: Convert to fraction form
    21,655.09/29,883.41 = 12,224.53/x
  3. Step 3: Cross multiply
    21,655.09x = 29,883.41 × 12,224.53
  4. Step 4: Simplify right side
    21,655.09x = 365,310,492.63
  5. Step 5: Solve for x
    x = 365,310,492.63/21,655.09
  6. Step 6: Final answer
    x = 16,869.50

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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.