Home / 25,221.53-34,804.31-13,890.62

Finding the Fourth Proportional to 25,221.53, 34,804.31 and 13,890.62

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Solution

The fourth proportional to 25,221.53, 34,804.31 and 13,890.62 is: 19,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,221.53 : 34,804.31 = 13,890.62 : x
  2. Step 2: Convert to fraction form
    25,221.53/34,804.31 = 13,890.62/x
  3. Step 3: Cross multiply
    25,221.53x = 34,804.31 × 13,890.62
  4. Step 4: Simplify right side
    25,221.53x = 483,453,201.10
  5. Step 5: Solve for x
    x = 483,453,201.10/25,221.53
  6. Step 6: Final answer
    x = 19,168.28

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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.