Home / 18,355.56-25,338.06-13,880.31

Finding the Fourth Proportional to 18,355.56, 25,338.06 and 13,880.31

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Solution

The fourth proportional to 18,355.56, 25,338.06 and 13,880.31 is: 19,160.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,355.56 : 25,338.06 = 13,880.31 : x
  2. Step 2: Convert to fraction form
    18,355.56/25,338.06 = 13,880.31/x
  3. Step 3: Cross multiply
    18,355.56x = 25,338.06 × 13,880.31
  4. Step 4: Simplify right side
    18,355.56x = 351,700,127.60
  5. Step 5: Solve for x
    x = 351,700,127.60/18,355.56
  6. Step 6: Final answer
    x = 19,160.41

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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.