Home / 20,731.25-31,102.23-5,941.25

Finding the Fourth Proportional to 20,731.25, 31,102.23 and 5,941.25

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Solution

The fourth proportional to 20,731.25, 31,102.23 and 5,941.25 is: 8,913.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731.25 : 31,102.23 = 5,941.25 : x
  2. Step 2: Convert to fraction form
    20,731.25/31,102.23 = 5,941.25/x
  3. Step 3: Cross multiply
    20,731.25x = 31,102.23 × 5,941.25
  4. Step 4: Simplify right side
    20,731.25x = 184,785,968.48
  5. Step 5: Solve for x
    x = 184,785,968.48/20,731.25
  6. Step 6: Final answer
    x = 8,913.40

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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.