Home / 25,203.30-34,780.01-13,872.21

Finding the Fourth Proportional to 25,203.30, 34,780.01 and 13,872.21

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Solution

The fourth proportional to 25,203.30, 34,780.01 and 13,872.21 is: 19,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,203.30 : 34,780.01 = 13,872.21 : x
  2. Step 2: Convert to fraction form
    25,203.30/34,780.01 = 13,872.21/x
  3. Step 3: Cross multiply
    25,203.30x = 34,780.01 × 13,872.21
  4. Step 4: Simplify right side
    25,203.30x = 482,475,602.52
  5. Step 5: Solve for x
    x = 482,475,602.52/25,203.30
  6. Step 6: Final answer
    x = 19,143.35

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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.