Home / 39,220.34-58,782.31-18,131.86

Finding the Fourth Proportional to 39,220.34, 58,782.31 and 18,131.86

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Solution

The fourth proportional to 39,220.34, 58,782.31 and 18,131.86 is: 27,175.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,220.34 : 58,782.31 = 18,131.86 : x
  2. Step 2: Convert to fraction form
    39,220.34/58,782.31 = 18,131.86/x
  3. Step 3: Cross multiply
    39,220.34x = 58,782.31 × 18,131.86
  4. Step 4: Simplify right side
    39,220.34x = 1,065,832,615.40
  5. Step 5: Solve for x
    x = 1,065,832,615.40/39,220.34
  6. Step 6: Final answer
    x = 27,175.51

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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.