Home / 21,523.44-29,699.06-12,090.18

Finding the Fourth Proportional to 21,523.44, 29,699.06 and 12,090.18

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Solution

The fourth proportional to 21,523.44, 29,699.06 and 12,090.18 is: 16,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,523.44 : 29,699.06 = 12,090.18 : x
  2. Step 2: Convert to fraction form
    21,523.44/29,699.06 = 12,090.18/x
  3. Step 3: Cross multiply
    21,523.44x = 29,699.06 × 12,090.18
  4. Step 4: Simplify right side
    21,523.44x = 359,066,920.78
  5. Step 5: Solve for x
    x = 359,066,920.78/21,523.44
  6. Step 6: Final answer
    x = 16,682.60

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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.