Home / 31,431.23-47,114.04-11,701.75

Finding the Fourth Proportional to 31,431.23, 47,114.04 and 11,701.75

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Solution

The fourth proportional to 31,431.23, 47,114.04 and 11,701.75 is: 17,540.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,431.23 : 47,114.04 = 11,701.75 : x
  2. Step 2: Convert to fraction form
    31,431.23/47,114.04 = 11,701.75/x
  3. Step 3: Cross multiply
    31,431.23x = 47,114.04 × 11,701.75
  4. Step 4: Simplify right side
    31,431.23x = 551,316,717.57
  5. Step 5: Solve for x
    x = 551,316,717.57/31,431.23
  6. Step 6: Final answer
    x = 17,540.41

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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.