Home / 31,289.50-43,220.91-23,317.88

Finding the Fourth Proportional to 31,289.50, 43,220.91 and 23,317.88

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Solution

The fourth proportional to 31,289.50, 43,220.91 and 23,317.88 is: 32,209.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.50 : 43,220.91 = 23,317.88 : x
  2. Step 2: Convert to fraction form
    31,289.50/43,220.91 = 23,317.88/x
  3. Step 3: Cross multiply
    31,289.50x = 43,220.91 × 23,317.88
  4. Step 4: Simplify right side
    31,289.50x = 1,007,820,188.37
  5. Step 5: Solve for x
    x = 1,007,820,188.37/31,289.50
  6. Step 6: Final answer
    x = 32,209.54

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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.