Home / 21,256.60-29,334.38-11,697.08

Finding the Fourth Proportional to 21,256.60, 29,334.38 and 11,697.08

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Solution

The fourth proportional to 21,256.60, 29,334.38 and 11,697.08 is: 16,142.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256.60 : 29,334.38 = 11,697.08 : x
  2. Step 2: Convert to fraction form
    21,256.60/29,334.38 = 11,697.08/x
  3. Step 3: Cross multiply
    21,256.60x = 29,334.38 × 11,697.08
  4. Step 4: Simplify right side
    21,256.60x = 343,126,589.61
  5. Step 5: Solve for x
    x = 343,126,589.61/21,256.60
  6. Step 6: Final answer
    x = 16,142.12

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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.