Home / 25,202.30-34,778.63-13,871.21

Finding the Fourth Proportional to 25,202.30, 34,778.63 and 13,871.21

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Solution

The fourth proportional to 25,202.30, 34,778.63 and 13,871.21 is: 19,141.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,202.30 : 34,778.63 = 13,871.21 : x
  2. Step 2: Convert to fraction form
    25,202.30/34,778.63 = 13,871.21/x
  3. Step 3: Cross multiply
    25,202.30x = 34,778.63 × 13,871.21
  4. Step 4: Simplify right side
    25,202.30x = 482,421,541.03
  5. Step 5: Solve for x
    x = 482,421,541.03/25,202.30
  6. Step 6: Final answer
    x = 19,141.97

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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.