Home / 31,238.35-43,110-17,091.20

Finding the Fourth Proportional to 31,238.35, 43,110 and 17,091.20

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Solution

The fourth proportional to 31,238.35, 43,110 and 17,091.20 is: 23,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,238.35 : 43,110 = 17,091.20 : x
  2. Step 2: Convert to fraction form
    31,238.35/43,110 = 17,091.20/x
  3. Step 3: Cross multiply
    31,238.35x = 43,110 × 17,091.20
  4. Step 4: Simplify right side
    31,238.35x = 736,801,632
  5. Step 5: Solve for x
    x = 736,801,632/31,238.35
  6. Step 6: Final answer
    x = 23,586.45

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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.