Home / 23,170.50-31,975.11-12,559.86

Finding the Fourth Proportional to 23,170.50, 31,975.11 and 12,559.86

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Solution

The fourth proportional to 23,170.50, 31,975.11 and 12,559.86 is: 17,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,170.50 : 31,975.11 = 12,559.86 : x
  2. Step 2: Convert to fraction form
    23,170.50/31,975.11 = 12,559.86/x
  3. Step 3: Cross multiply
    23,170.50x = 31,975.11 × 12,559.86
  4. Step 4: Simplify right side
    23,170.50x = 401,602,905.08
  5. Step 5: Solve for x
    x = 401,602,905.08/23,170.50
  6. Step 6: Final answer
    x = 17,332.51

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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.