Home / 20,741.02-31,114.76-8,261.14

Finding the Fourth Proportional to 20,741.02, 31,114.76 and 8,261.14

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Solution

The fourth proportional to 20,741.02, 31,114.76 and 8,261.14 is: 12,393.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.02 : 31,114.76 = 8,261.14 : x
  2. Step 2: Convert to fraction form
    20,741.02/31,114.76 = 8,261.14/x
  3. Step 3: Cross multiply
    20,741.02x = 31,114.76 × 8,261.14
  4. Step 4: Simplify right side
    20,741.02x = 257,043,388.43
  5. Step 5: Solve for x
    x = 257,043,388.43/20,741.02
  6. Step 6: Final answer
    x = 12,393.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.