Home / 31,560.76-43,555.26-18,136.36

Finding the Fourth Proportional to 31,560.76, 43,555.26 and 18,136.36

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Solution

The fourth proportional to 31,560.76, 43,555.26 and 18,136.36 is: 25,028.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,560.76 : 43,555.26 = 18,136.36 : x
  2. Step 2: Convert to fraction form
    31,560.76/43,555.26 = 18,136.36/x
  3. Step 3: Cross multiply
    31,560.76x = 43,555.26 × 18,136.36
  4. Step 4: Simplify right side
    31,560.76x = 789,933,875.25
  5. Step 5: Solve for x
    x = 789,933,875.25/31,560.76
  6. Step 6: Final answer
    x = 25,028.99

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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.