Home / 21,197.66-29,254.14-12,245.54

Finding the Fourth Proportional to 21,197.66, 29,254.14 and 12,245.54

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Solution

The fourth proportional to 21,197.66, 29,254.14 and 12,245.54 is: 16,899.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197.66 : 29,254.14 = 12,245.54 : x
  2. Step 2: Convert to fraction form
    21,197.66/29,254.14 = 12,245.54/x
  3. Step 3: Cross multiply
    21,197.66x = 29,254.14 × 12,245.54
  4. Step 4: Simplify right side
    21,197.66x = 358,232,741.54
  5. Step 5: Solve for x
    x = 358,232,741.54/21,197.66
  6. Step 6: Final answer
    x = 16,899.64

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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.