Home / 21,627.48-29,840.81-12,194.22

Finding the Fourth Proportional to 21,627.48, 29,840.81 and 12,194.22

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Solution

The fourth proportional to 21,627.48, 29,840.81 and 12,194.22 is: 16,825.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,627.48 : 29,840.81 = 12,194.22 : x
  2. Step 2: Convert to fraction form
    21,627.48/29,840.81 = 12,194.22/x
  3. Step 3: Cross multiply
    21,627.48x = 29,840.81 × 12,194.22
  4. Step 4: Simplify right side
    21,627.48x = 363,885,402.12
  5. Step 5: Solve for x
    x = 363,885,402.12/21,627.48
  6. Step 6: Final answer
    x = 16,825.14

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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.