Home / 31,420.89-43,360.68-17,080.83

Finding the Fourth Proportional to 31,420.89, 43,360.68 and 17,080.83

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Solution

The fourth proportional to 31,420.89, 43,360.68 and 17,080.83 is: 23,571.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,420.89 : 43,360.68 = 17,080.83 : x
  2. Step 2: Convert to fraction form
    31,420.89/43,360.68 = 17,080.83/x
  3. Step 3: Cross multiply
    31,420.89x = 43,360.68 × 17,080.83
  4. Step 4: Simplify right side
    31,420.89x = 740,636,403.76
  5. Step 5: Solve for x
    x = 740,636,403.76/31,420.89
  6. Step 6: Final answer
    x = 23,571.46

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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.